How many hours is JST ahead of CET?

JST is currently +7h relative to CET, using Europe/Berlin and Asia/Tokyo as the live reference zones on this page.

What is the best workday overlap between CET and JST?

The current 9-to-5 overlap is about 1 hours: CET 9:00 AM previous day to 10:00 AM previous day, which matches JST 4:00 PM previous day to 5:00 PM previous day.

Which cities commonly use CET and JST?

CET commonly covers cities such as Berlin, Madrid, Algiers, and Rome, while JST commonly covers cities such as Tokyo, Yokohama, Osaka, and Nagoya.

Should I use CET/JST or exact IANA zones?

Use the abbreviations for a quick read, but use exact IANA zones such as Europe/Berlin and Asia/Tokyo when you need something precise in software, travel plans, or long-range scheduling.

Timezone converter

CET to JST Converter.

CET → JSTGap: +7h1h 9-5 overlap

CET to JST currently uses Central European Time in Europe/Berlin and Japan Time in Asia/Tokyo as the live reference pair, with a +7h live gap. CET to JST matters whenever Berlin and Tokyo need to coordinate across a +7h gap. The CET side covers Germany and Spain, while JST covers Japan — that country mix is the practical reason this conversion shows up in calendars rather than the abstract offset math.

Last updated recently. Offset math, DST behavior, and city coverage on both sides are refreshed from the live timezone dataset during the page revalidation window.

From

CET

Central European Time

Europe/Berlin · GMT+2 +02:00

--:--:--

Major markets in this grouping include Berlin, Madrid, Algiers, Rome.

JST

Japan Time

Asia/Tokyo · GMT+9 +09:00

--:--:--

Major markets in this grouping include Tokyo, Yokohama, Osaka, Nagoya.

Scheduling snapshot

Current gap

+7h

CET +02:00 vs JST +09:00

9-to-5 overlap

CET 9:00 AM previous day to 10:00 AM previous day

Representative countries

Germany, Spain, and Algeria / Japan

Based on the busiest city and zone usage found in the current dataset.

Pair context

CET (Berlin, +02:00) to JST (Tokyo, +09:00) is currently a +7h conversion. Live coverage on the CET side is anchored by Berlin, Madrid, Algiers, and Rome; the JST side draws from Tokyo, Yokohama, Osaka, and Nagoya.

CET to JST matters whenever Berlin and Tokyo need to coordinate across a +7h gap. The CET side covers Germany and Spain, while JST covers Japan — that country mix is the practical reason this conversion shows up in calendars rather than the abstract offset math.

This pair runs between Europe or Africa and Asia or the Pacific. With +7h between them, the late European morning often catches the early Asian evening, which is the practical window for cross-region operations and travel planning.

CET follows seasonal clock changes through Europe/Berlin, while JST stays on a fixed offset year-round. That asymmetry is the real differentiator on this page: the gap widens or narrows by an hour twice a year, so calendar invites scheduled in one season often look wrong in the other.

CET and JST sit exactly 7h apart, leaving roughly 1h of usable 9-to-5 overlap. That window is tight enough that recurring meetings tend to pile onto the same hour, which is why teams with this pair often consolidate cross-region work into a single anchor meeting per day.

Pair details

Reference zone, current offsets, country and city anchors, overlap math, and date-shift answers for CET to JST.

Reference pair

Europe/Berlin -> Asia/Tokyo

Live offsets

CET +02:00 vs JST +09:00

Meaning split

Central European Time / Japan Time

Country anchors

Germany, Spain, and Algeria -> Japan

City anchors

Berlin, Madrid, Algiers, Rome -> Tokyo, Yokohama, Osaka, Nagoya

Workday overlap

1h window: CET 9:00 AM previous day-10:00 AM previous day

Morning answer

9 AM CET = 4:00 PM JST, same day

Evening answer

6 PM CET = 1:00 AM JST, next day

Calendar and scheduling context

Same-offset labels can share the same hour while still landing in different countries, calendars, cities, and workday windows. These notes show the practical context behind this conversion.

Exact pair identity

CET to JST is pinned to Europe/Berlin -> Asia/Tokyo, with the shorthand labels shown as context. The city anchors are Berlin, Madrid, Algiers, Rome on the CET side and Tokyo, Yokohama, Osaka, Nagoya on the JST side, with +7h between the live reference zones.

Civil calendar differences

The 12 popular-hour answers include 9 same-day conversions, 3 next-day conversions, and 0 previous-day conversions. That distribution is what separates this page from a static offset chart.

Same-offset caution

Nearby labels sharing a current offset include CEST (From side), CAT (From side), GMT+9 (To side), KST (To side), PWT (To side), WIT (To side). They may match mathematically, but their country calendars, city anchors, and common search intent differ from this exact pair.

Jurisdiction evidence

CET: Germany (DE); 1144 mapped cities; capital Berlin; German; EUR euro | CET: Spain (ES); 693 mapped cities; capital Madrid; Spanish, Catalan, Basque, Galician; EUR euro | CET: Algeria (DZ); 294 mapped cities; capital Algiers; Arabic; DZD Algerian dinar | CET: Italy (IT); 653 mapped cities; capital Rome; Italian, Catalan; EUR euro | CET: France (FR); 691 mapped cities; capital Paris; French; EUR euro | JST: Japan (JP); 1296 mapped cities; capital Tokyo; Japanese; JPY Japanese yen

Pair fingerprint

Offset behavior, DST gap changes, local calendar evidence, and the day-shift pattern across the most common conversion hours.

Offset behavior class

CET/JST is a regional or transcontinental offset gap: Europe/Berlin currently reads +02:00, Asia/Tokyo reads +09:00, and the live delta is +7h. This class decides whether the page behaves like a same-day planner or a handoff planner.

DST asymmetry check

Europe/Berlin changes from +02:00 (GMT+2) to +01:00 (GMT+1) on October 25, 2026 at about 2:00 AM.

Calendar evidence

No country holiday snapshot is attached to this exact pair yet, so the page leans on city anchors, IANA zones, offsets, and the live conversion table instead of pretending a local calendar exists.

Day-shift fingerprint

Across the 12 popular-hour answers, this pair has 9 same-day answers, 3 next-day answers, 0 previous-day answers. That mix is specific to the current Europe/Berlin -> Asia/Tokyo relationship and helps users see whether dates must be written explicitly in invites, travel plans, and release schedules.

Same-offset and canonical audit

Same-offset converter clusters can look identical if the page only shows a numeric offset. This audit states whether the route should be indexed, which canonical peer it follows when consolidated, and what pair-specific evidence keeps the page useful.

Indexing posture

This pair remains indexable because the route has enough pair-specific context: Europe/Berlin -> Asia/Tokyo, country anchors, city anchors, calendar notes, and day-shift examples.

Same-offset math check

CET and JST are not currently a same-offset pair; the live delta is +7h. Same-offset neighbors are still listed because users often confuse nearby abbreviations.

Neighbor audit

CEST (From side, +02:00), CAT (From side, +02:00), GMT+9 (To side, +09:00), KST (To side, +09:00), PWT (To side, +09:00), WIT (To side, +09:00) The page keeps these labels visible so SGT/HKT/GST-style clusters do not blur into one generic offset page.

Canonical evidence

CET/JST uses 9 same-day answers, 3 next-day answers, 0 previous-day answers; 1h strict workday overlap; source zones Europe/Berlin and Asia/Tokyo; country anchors Germany, Spain, and Algeria -> Japan.

Local intent behind each abbreviation

Common places, calendars, markets, languages, and operating contexts behindCET and JST.

CET

CET local intent 1

CET is Central European Time, the winter standard-time label for a large European civil-time family. It touches cities such as Paris, Berlin, Rome, Madrid, Warsaw, Zurich, Vienna, Prague, Amsterdam, and Brussels, but each country still has its own holiday and market calendar.

CET

CET local intent 2

For scheduling, CET needs a seasonal caveat: many of the same countries switch to CEST in summer. If a source says CET during daylight-saving months, verify whether it really means fixed UTC+1, local civil time, or a casual label for the Central European region.

JST

JST local intent 1

JST is Japan civil time, centered on Tokyo, Yokohama, Osaka, Nagoya, Sapporo, Fukuoka, and the rest of the Japanese domestic timetable. The useful context is Japan's no-DST posture, yen-denominated business cycles, Tokyo Stock Exchange timing, rail and aviation punctuality, anime/game/media release schedules, and holiday clusters such as Golden Week and year-end closures.

JST

JST local intent 2

A JST conversion is often searched by teams coordinating with Japan specifically, not merely UTC+9. Product launches, live streams, travel arrivals, and support handoffs should account for Japanese business etiquette, local public holidays, and the difference between Japan's stable clock and regions where daylight saving changes the counterpart offset.

Country calendar contrast

Same-offset conversions can still land in different public-holiday, language, currency, and city-anchor contexts. These rows use the country profile and holiday snapshots behind each side of the pair.

CET

Germany

1,144 mapped city anchors; zones Europe/Berlin.capital Berlin; German; EUR euro

Holiday snapshot: New Year's Day (Jan 1, Public) · Epiphany (Jan 6, Public) · International Women's Day (Mar 8, Public) · Good Friday (Apr 3, Public) · Easter Sunday (Apr 5, Public)

CET

Spain

693 mapped city anchors; zones Europe/Madrid.capital Madrid; Spanish, Catalan, Basque, Galician; EUR euro

Holiday snapshot: New Year's Day (Jan 1, Public) · Epiphany (Jan 6, Public) · Day of Andalucía (Feb 28, Public) · Day of the Balearic Islands (Mar 1, Public) · Maundy Thursday (Apr 2, Public)

CET

Algeria

294 mapped city anchors; zones Africa/Algiers.capital Algiers; Arabic; DZD Algerian dinar

Holiday snapshot: No holiday snapshot attached for the current year.

CET

Italy

653 mapped city anchors; zones Europe/Rome.capital Rome; Italian, Catalan; EUR euro

Holiday snapshot: New Year's Day (Jan 1, Public) · Epiphany (Jan 6, Public) · Easter Sunday (Apr 5, Public) · Easter Monday (Apr 6, Public) · Liberation Day (Apr 25, Public)

CET

France

691 mapped city anchors; zones Europe/Paris.capital Paris; French; EUR euro

Holiday snapshot: New Year's Day (Jan 1, Public) · Easter Monday (Apr 6, Public) · Labour Day (May 1, Public) · Victory in Europe Day (May 8, Public) · Ascension Day (May 14, Public)

JST

Japan

1,296 mapped city anchors; zones Asia/Tokyo.capital Tokyo; Japanese; JPY Japanese yen

Holiday snapshot: New Year's Day (Jan 1, Public) · Coming of Age Day (Jan 12, Public) · Foundation Day (Feb 11, Public) · The Emperor's Birthday (Feb 23, Public) · Vernal Equinox Day (Mar 20, Public)

Neighboring abbreviation checks

These are the labels most likely to be confused with either side of this conversion. A matching UTC offset does not mean the same country, calendar, market, source convention, or user intent.

From side: CEST

same offset

CET and CEST match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.

Current side: CET: Central European Time via Europe/Berlin, +02:00; cities Berlin, Germany, Madrid, Spain, and Algiers, Algeria; countries Germany, Spain, and Algeria.
Neighbor side: CEST: Central European Time via Europe/Berlin, +02:00; cities Berlin, Germany, Madrid, Spain, and Algiers, Algeria; countries Germany, Spain, and Algeria.

Open CEST

From side: CAT

same offset

CET and CAT match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.

Current side: CET: Central European Time via Europe/Berlin, +02:00; cities Berlin, Germany, Madrid, Spain, and Algiers, Algeria; countries Germany, Spain, and Algeria.
Neighbor side: CAT: Central Africa Time via Africa/Lubumbashi, +02:00; cities Lubumbashi, Democratic Republic of the Congo, Lusaka, Zambia, and Mbuji-Mayi, Democratic Republic of the Congo; countries Democratic Republic of the Congo, Zambia, and Sudan.

Open CAT

From side: EEST

nearby

CET and EEST are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.

Current side: CET: Central European Time via Europe/Berlin, +02:00; cities Berlin, Germany, Madrid, Spain, and Algiers, Algeria; countries Germany, Spain, and Algeria.
Neighbor side: EEST: Eastern European Time via Africa/Cairo, +03:00; cities Cairo, Egypt, Alexandria, Egypt, and Giza, Egypt; countries Egypt, Ukraine, and Lebanon.

Open EEST

From side: EET

nearby

CET and EET are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.

Current side: CET: Central European Time via Europe/Berlin, +02:00; cities Berlin, Germany, Madrid, Spain, and Algiers, Algeria; countries Germany, Spain, and Algeria.
Neighbor side: EET: Eastern European Time via Africa/Cairo, +03:00; cities Cairo, Egypt, Alexandria, Egypt, and Giza, Egypt; countries Egypt, Ukraine, and Lebanon.

Open EET

From side: WEST

nearby

CET and WEST are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.

Current side: CET: Central European Time via Europe/Berlin, +02:00; cities Berlin, Germany, Madrid, Spain, and Algiers, Algeria; countries Germany, Spain, and Algeria.
Neighbor side: WEST: Western European Time via Africa/Casablanca, +01:00; cities Casablanca, Morocco, Rabat, Morocco, and Fes, Morocco; countries Morocco, Portugal, and Spain.

Open WEST

From side: WET

nearby

CET and WET are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.

Current side: CET: Central European Time via Europe/Berlin, +02:00; cities Berlin, Germany, Madrid, Spain, and Algiers, Algeria; countries Germany, Spain, and Algeria.
Neighbor side: WET: Western European Time via Africa/Casablanca, +01:00; cities Casablanca, Morocco, Rabat, Morocco, and Fes, Morocco; countries Morocco, Portugal, and Spain.

Open WET

To side: GMT+9

same offset

JST and GMT+9 match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.

Current side: JST: Japan Time via Asia/Tokyo, +09:00; cities Tokyo, Japan, Yokohama, Japan, and Osaka, Japan; countries Japan.
Neighbor side: GMT+9: Timor-Leste Time via Asia/Dili, +09:00; cities Dili, Timor Leste, Maliana, Timor Leste, and Suai, Timor Leste; countries Timor Leste.

Open GMT+9

To side: KST

same offset

JST and KST match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.

Current side: JST: Japan Time via Asia/Tokyo, +09:00; cities Tokyo, Japan, Yokohama, Japan, and Osaka, Japan; countries Japan.
Neighbor side: KST: Korean Time via Asia/Seoul, +09:00; cities Seoul, South Korea, Busan, South Korea, and Pyongyang, North Korea; countries South Korea and North Korea.

Open KST

To side: PWT

same offset

JST and PWT match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.

Current side: JST: Japan Time via Asia/Tokyo, +09:00; cities Tokyo, Japan, Yokohama, Japan, and Osaka, Japan; countries Japan.
Neighbor side: PWT: Palau Time via Pacific/Palau, +09:00; cities Ngerulmud, Palau; countries Palau.

Open PWT

To side: WIT

same offset

JST and WIT match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.

Current side: JST: Japan Time via Asia/Tokyo, +09:00; cities Tokyo, Japan, Yokohama, Japan, and Osaka, Japan; countries Japan.
Neighbor side: WIT: Eastern Indonesia Time via Asia/Jayapura, +09:00; cities Jayapura, Indonesia, Ambon, Indonesia, and Sorong, Indonesia; countries Indonesia.

Open WIT

To side: YAKT

same offset

JST and YAKT match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.

Current side: JST: Japan Time via Asia/Tokyo, +09:00; cities Tokyo, Japan, Yokohama, Japan, and Osaka, Japan; countries Japan.
Neighbor side: YAKT: Yakutsk Time via Asia/Chita, +09:00; cities Chita, Russia, Krasnokamensk, Russia, and Borzya, Russia; countries Russia.

Open YAKT

To side: ACDT

nearby

JST and ACDT are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.

Current side: JST: Japan Time via Asia/Tokyo, +09:00; cities Tokyo, Japan, Yokohama, Japan, and Osaka, Japan; countries Japan.
Neighbor side: ACDT: Australian Central Time via Australia/Adelaide, +09:30; cities Adelaide, Australia, Darwin, Australia, and Adelaide Hills, Australia; countries Australia.

Open ACDT

Jurisdiction and city roster

Abbreviations with the same UTC offset can still represent different countries, cities, currencies, languages, and civil-time histories. This roster keeps theCET to JST page grounded in those concrete places.

CET: Spain (ES); 693 mapped cities; zones Europe/Madrid; city anchors Madrid (Europe/Madrid, pop 3,255,944), Barcelona (Europe/Madrid, pop 1,686,208), Valencia (Europe/Madrid, pop 824,340), Zaragoza (Europe/Madrid, pop 686,986); official Kingdom of Spain; capital Madrid; region Europe; subregion Southern Europe; population 49,315,949; area 505,992 km2; languages Spanish, Catalan, Basque, Galician; currency EUR euro.

CET: Algeria (DZ); 294 mapped cities; zones Africa/Algiers; city anchors Algiers (Africa/Algiers, pop 2,364,230), Oran (Africa/Algiers, pop 803,329), Constantine (Africa/Algiers, pop 448,028), Annaba (Africa/Algiers, pop 342,703); official People's Democratic Republic of Algeria; capital Algiers; region Africa; subregion Northern Africa; population 47,400,000; area 2,381,741 km2; languages Arabic; currency DZD Algerian dinar.

CET: Italy (IT); 653 mapped cities; zones Europe/Rome; city anchors Rome (Europe/Rome, pop 2,318,895), Milan (Europe/Rome, pop 1,371,498), Naples (Europe/Rome, pop 909,048), Turin (Europe/Rome, pop 847,287); official Italian Republic; capital Rome; region Europe; subregion Southern Europe; population 58,927,633; area 301,336 km2; languages Italian, Catalan; currency EUR euro.

CET: France (FR); 691 mapped cities; zones Europe/Paris; city anchors Paris (Europe/Paris, pop 2,138,551), Marseille (Europe/Paris, pop 877,215), Lyon (Europe/Paris, pop 520,774), Toulouse (Europe/Paris, pop 511,684); official French Republic; capital Paris; region Europe; subregion Western Europe; population 66,351,959; area 543,908 km2; languages French; currency EUR euro.

JST: Japan (JP); 1296 mapped cities; zones Asia/Tokyo; city anchors Tokyo (Asia/Tokyo, pop 9,733,276), Yokohama (Asia/Tokyo, pop 3,777,491), Osaka (Asia/Tokyo, pop 2,753,862), Nagoya (Asia/Tokyo, pop 2,332,176); official Japan; capital Tokyo; region Asia; subregion Eastern Asia; population 123,210,000; area 377,930 km2; languages Japanese; currency JPY Japanese yen.

Abbreviation identity dossier

Same-offset converter pages can look deceptively alike. These records pin the page to the exact abbreviations, IANA zones, countries, and city anchors behind CET and JST.

From side meaning roster

CET (cet) is not marked ambiguous in the abbreviation catalog. Meaning records: Central European Time at UTC+01:00; listed zones Africa/Algiers; Africa/Tunis; Europe/Andorra; Europe/Belgrade; Europe/Berlin; Europe/Bratislava; Europe/Brussels; Europe/Budapest; Europe/Copenhagen; Europe/Gibraltar; Europe/Ljubljana; Arctic/Longyearbyen; source label Central European Time - Algiers, Oran, Constantine, Annaba.

From side country footprint

CET currently maps to 8 country footprints in the converter dataset: Germany (DE), Spain (ES), Algeria (DZ), Italy (IT), France (FR), Hungary (HU), Poland (PL), Austria (AT). The footprint spans 8 IANA zones across 10 city anchors.

From side city anchors

CET city anchors in this indexed page family: Berlin [berlin-DE, DE, Europe/Berlin, pop 3,426,354]; Madrid [madrid-ES, ES, Europe/Madrid, pop 3,255,944]; Algiers [algiers-DZ, DZ, Africa/Algiers, pop 2,364,230]; Rome [rome-IT, IT, Europe/Rome, pop 2,318,895]; Paris [paris-FR, FR, Europe/Paris, pop 2,138,551]; Hamburg [hamburg-DE, DE, Europe/Berlin, pop 1,845,229]; Budapest [budapest-HU, HU, Europe/Budapest, pop 1,741,041]; Warsaw [warsaw-PL, PL, Europe/Warsaw, pop 1,702,139]; Vienna [vienna-AT, AT, Europe/Vienna, pop 1,691,468]; Barcelona [barcelona-ES, ES, Europe/Madrid, pop 1,686,208].

From side jurisdiction dossier

CET: Germany (DE); 1144 mapped cities; zones Europe/Berlin; city anchors Berlin (Europe/Berlin, pop 3,426,354), Hamburg (Europe/Berlin, pop 1,845,229), Munich (Europe/Berlin, pop 1,260,391), Köln (Europe/Berlin, pop 963,395); official Federal Republic of Germany; capital Berlin; region Europe; subregion Western Europe; population 83,491,249; area 357,114 km2; languages German; currency EUR euro. CET: Spain (ES); 693 mapped cities; zones Europe/Madrid; city anchors Madrid (Europe/Madrid, pop 3,255,944), Barcelona (Europe/Madrid, pop 1,686,208), Valencia (Europe/Madrid, pop 824,340), Zaragoza (Europe/Madrid, pop 686,986); official Kingdom of Spain; capital Madrid; region Europe; subregion Southern Europe; population 49,315,949; area 505,992 km2; languages Spanish, Catalan, Basque, Galician; currency EUR euro. CET: Algeria (DZ); 294 mapped cities; zones Africa/Algiers; city anchors Algiers (Africa/Algiers, pop 2,364,230), Oran (Africa/Algiers, pop 803,329), Constantine (Africa/Algiers, pop 448,028), Annaba (Africa/Algiers, pop 342,703); official People's Democratic Republic of Algeria; capital Algiers; region Africa; subregion Northern Africa; population 47,400,000; area 2,381,741 km2; languages Arabic; currency DZD Algerian dinar. CET: Italy (IT); 653 mapped cities; zones Europe/Rome; city anchors Rome (Europe/Rome, pop 2,318,895), Milan (Europe/Rome, pop 1,371,498), Naples (Europe/Rome, pop 909,048), Turin (Europe/Rome, pop 847,287); official Italian Republic; capital Rome; region Europe; subregion Southern Europe; population 58,927,633; area 301,336 km2; languages Italian, Catalan; currency EUR euro. CET: France (FR); 691 mapped cities; zones Europe/Paris; city anchors Paris (Europe/Paris, pop 2,138,551), Marseille (Europe/Paris, pop 877,215), Lyon (Europe/Paris, pop 520,774), Toulouse (Europe/Paris, pop 511,684); official French Republic; capital Paris; region Europe; subregion Western Europe; population 66,351,959; area 543,908 km2; languages French; currency EUR euro.

To side meaning roster

JST (jst) is not marked ambiguous in the abbreviation catalog. Meaning records: Japan Time at UTC+09:00; listed zones Asia/Tokyo; source label Japan Time - Tokyo, Yokohama, Osaka, Nagoya.

To side country footprint

JST currently maps to 1 country footprint in the converter dataset: Japan (JP). The footprint spans 1 IANA zone across 10 city anchors.

To side city anchors

JST city anchors in this indexed page family: Tokyo [tokyo-JP, JP, Asia/Tokyo, pop 9,733,276]; Yokohama [yokohama-JP, JP, Asia/Tokyo, pop 3,777,491]; Osaka [osaka-JP, JP, Asia/Tokyo, pop 2,753,862]; Nagoya [nagoya-JP, JP, Asia/Tokyo, pop 2,332,176]; Sapporo [sapporo-JP, JP, Asia/Tokyo, pop 1,973,832]; Fukuoka [fukuoka-JP, JP, Asia/Tokyo, pop 1,612,392]; Kawasaki [kawasaki-JP, JP, Asia/Tokyo, pop 1,538,262]; Kobe [kobe-JP, JP, Asia/Tokyo, pop 1,525,152]; Kyoto [kyoto-JP, JP, Asia/Tokyo, pop 1,463,723]; Saitama [saitama-JP, JP, Asia/Tokyo, pop 1,324,854].

To side jurisdiction dossier

From side timezone narrative

CET is a European civil-time label, currently 2h ahead of UTC at +02:00. It maps to 33 IANA zones across 33 countries, and the cities below show how the label actually spreads across the continent. The busiest cities using CET in the current catalog are Berlin, Madrid, Algiers, Rome, and Paris. The lead live reference on this page is Berlin (Europe/Berlin), currently at +02:00 (GMT+2). Those cities are what give CET its actual feel rather than the abstract offset. CET currently shows +02:00, but Europe/Berlin observes seasonal clock changes — the next transition is around October 25, 2026. That means the offset on this page is a snapshot, not a permanent fact, so long-range scheduling should pin the underlying IANA zone instead of the abbreviation.

From side policy and precision notes

CET is not heavily split in the current catalog, but the short label still hides the underlying IANA zone and any future policy change. The safe pattern is to write the abbreviation for humans and the zone for machines. Europe/Berlin has an upcoming offset change on October 25, 2026. After that point, CET on this page will read a different UTC offset until the next transition, so any saved timestamp should anchor to the IANA zone rather than the abbreviation. For precise work, the safest equivalent of CET is the exact IANA zone used by your city or system. Europe/Berlin sits at +02:00, ahead of UTC, which means daily logs in this zone reach a new calendar date before UTC does — a small detail that breaks date-based reporting if missed.

From side nearby abbreviations

CET should not be blindly swapped with nearby labels. Adjacent references in the catalog: CEST (+02:00, Shares the central and european time family); CAT (+02:00, Shares the central time family); EEST (+03:00, Shares the european time family); EET (+03:00, Shares the european time family); WEST (+01:00, Shares the european time family); WET (+01:00, Shares the european time family).

From side answer profile

CET has 1 meaning record, offset range UTC+01:00 to UTC+02:00, labels Central European Time, and 33 country footprints across 33 IANA zones.

To side timezone narrative

JST is an Asian civil-time label, currently 9h ahead of UTC at +09:00. The lead reference is Tokyo, and the wider grouping reaches 1 country through 1 IANA zone. The busiest cities using JST in the current catalog are Tokyo, Yokohama, Osaka, Nagoya, and Sapporo. The lead live reference on this page is Tokyo (Asia/Tokyo), currently at +09:00 (GMT+9). Those cities are what give JST its actual feel rather than the abstract offset. JST is stable on Asia/Tokyo year-round, with no seasonal clock changes in the next year. That makes it a low-friction choice for recurring meetings and broadcast schedules — but software still prefers the IANA zone because governments can change civil-time rules independently of the short code.

To side policy and precision notes

JST resolves cleanly here, but Asian labels often share letters with American or European ones — IST is shared between India and Israel, for instance. Pinning Asia/Tokyo avoids that whole class of confusion. Asia/Tokyo does not show an offset change in the next year, which makes JST predictable for short-term scheduling. Predictable is not the same as permanent — civil-time rules still get changed by governments on relatively short notice. For precise work, the safest equivalent of JST is the exact IANA zone used by your city or system. Asia/Tokyo sits at +09:00, ahead of UTC, which means daily logs in this zone reach a new calendar date before UTC does — a small detail that breaks date-based reporting if missed.

To side nearby abbreviations

JST should not be blindly swapped with nearby labels. Adjacent references in the catalog: GMT+9 (+09:00, Currently sits on the same UTC offset); KST (+09:00, Currently sits on the same UTC offset); PWT (+09:00, Currently sits on the same UTC offset); WIT (+09:00, Currently sits on the same UTC offset); YAKT (+09:00, Currently sits on the same UTC offset); ACDT (+09:30, Runs on a nearby UTC offset).

To side answer profile

JST has 1 meaning record, offset range UTC+09:00, labels Japan Time, and 1 country footprint across 1 IANA zone.

From side country reference summary

CET country anchor Germany: Germany, officially the Federal Republic of Germany, is a country in Western and Central Europe. It lies between the Baltic Sea and the North Sea to the north with the Alps to the south. Its sixteen constituent states have a total population of over 82 million, making it the most populous member state of the European Union (EU). Germany borders Denmark to the north; Poland and the Czech Republic to the east; Austria and Switzerland to the south; and France, Luxembourg, Belgium, and the Netherlands to the west. The nation's capital and most populous city is Berlin and its main financial centre is Frankfurt; the largest urban area is the Ruhr. Source: Wikipedia.

To side country reference summary

JST country anchor Japan: Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asian mainland, it is bordered to the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea in the south. The Japanese archipelago consists of four major islands alongside 14,121 smaller islands. Japan is divided into 47 administrative prefectures and eight traditional regions, and around 75% of its terrain is mountainous and heavily forested, concentrating its agriculture and highly urbanized population along its eastern coastal plains. With a population of almost 123 million as of 2026, it is the world's 11th most populous country. Tokyo is the country's capital and largest city. Source: Wikipedia.

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Pair identity check

CET/JST uses Europe/Berlin -> Asia/Tokyo, offset delta +7h, overlap 1h, route /convert/cet/jst/, and live abbreviation readings GMT+2/GMT+9.

Reference data for CET to JST

Reference fields include this converter pair's abbreviation records, representative IANA zones, current offsets, city anchors, country profiles, overlap math, conversion examples, and dossier notes.

centraleuropeantimealgiersoranconstantineannabajapantimetokyoyokohamaosakanagoyaeuropeberlinasiatokyocentraleuropeantimejapantime900ampreviousday1000ampreviousdayberlindemadrideseuropemadridalgiersdzafricaalgierseuroperomeeuropeparishamburgdebudapesthubudapesteuropebudapestwarsawpleuropewarsawviennaateuropeviennabarcelonaesbarcelonayokohamajpyokohamanagoyajpwesterneuropegaliciansoutherneuropealgeriandinarnorthernafricajapanesejapaneseyeneasternasiacapitalberlingermaneureurocapitalmadridspanishcatalanbasquegalicianeureurocapitalalgiersarabicdzdalgeriandinarnoholidaysnapshotattachedforthecurrentyearcapitalromeitaliancatalaneureurocapitalparisfrencheureurocapitaltokyojapanesejpyjapaneseyenreferencepaireuropeberlinasiatokyoliveoffsetscet0200vsjst0900meaningsplitcentraleuropeantimejapantimecountryanchorsgermanyspainandalgeriajapancityanchorsberlinmadridalgiersrometokyoyokohamaosakanagoyaworkdayoverlap1hwindowcet900ampreviousday1000ampreviousdaymorninganswer9amcet400pmjstsamedayeveninganswer6pmcet100amjstnextdaycetlocalintent1cetlocalintent2jstlocalintent1jstlocalintent2exactpairidentitycivilcalendardifferencessameoffsetcautionjurisdictionevidenceoffsetbehaviorclassdstasymmetrycheckeuropeberlinchangesfrom0200gmt2to0100gmt1onoctober252026atabout200amcalendarevidencedayshiftfingerprintindexingposturesameoffsetmathcheckneighborauditcanonicalevidencefromsidesharesthecentralandeuropeantimefamilysharesthecentraltimefamilysharestheeuropeantimefamilycurrentlysitsonthesameutcoffsetpwtpalautimeviapacificpalau0900citiesngerulmudpalaucountriespalaurunsonanearbyutcoffsetfromsidemeaningrosterfromsidecountryfootprintfromsidecityanchorsfromsidejurisdictiondossiertosidemeaningrostertosidecountryfootprinttosidecityanchorstosidejurisdictiondossierfromsidetimezonenarrativefromsidepolicyandprecisionnotesfromsidenearbyabbreviationsfromsideanswerprofiletosidetimezonenarrativetosidepolicyandprecisionnotestosidenearbyabbreviationstosideanswerprofilefromsidecountryreferencesummarytosidecountryreferencesummaryfromsidetrustnote1fromsidetrustnote2tosidetrustnote1tosidetrustnote2pairidentitycheckjstcentralcentraleuropeaneuropeantimetimealgiersalgiersoranoranconstantineconstantineannabaannabajapantimetokyotokyoyokohamayokohamaosakaosakanagoyanagoyaeuropeberlinasia

Market coverage on both sides

CET coverage on this page is led by Berlin, Germany, Madrid, Spain, Algiers, Algeria, and Rome, Italy, with 2 more in the live dataset. That mix is what makes CET feel anchored to European working-day rhythms in practice rather than just an abbreviation on a chart.

JST coverage is led by Tokyo, Japan, Yokohama, Japan, Osaka, Japan, and Nagoya, Japan, with 2 more anchoring the wider label family. Combined with the CET side, this conversion ends up describing Europe-to-Asia trade calls, manufacturing supply-chain coordination, and joint-venture standups.

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Common meeting times

CET to JST meeting times

Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.

CET	JST	Day relation
9:00 AM	4:00 PMMon, May 25	same day
12:00 PM	7:00 PMMon, May 25	same day
3:00 PM	10:00 PMMon, May 25	same day
6:00 PM	1:00 AMTue, May 26	next day
9:00 PM	4:00 AMTue, May 26	next day

JST to CET meeting times

Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.

JST	CET	Day relation
9:00 AM	2:00 AMMon, May 25	same day
12:00 PM	5:00 AMMon, May 25	same day
3:00 PM	8:00 AMMon, May 25	same day
6:00 PM	11:00 AMMon, May 25	same day
9:00 PM	2:00 PMMon, May 25	same day

Operational notes

CET to JST ranges from CET 9:00 AM (which lands at JST 4:00 PM) through CET 9:00 PM (JST 4:00 AM). The +7h gap means most CET mornings collide with JST late evening or after-hours, so this direction tends to be used for end-of-day handoffs rather than live calls.

JST to CET ranges from JST 9:00 AM (which lands at CET 2:00 AM) through JST 9:00 PM (CET 2:00 PM). The +7h gap means most JST mornings collide with CET late evening or after-hours, so this direction tends to be used for end-of-day handoffs rather than live calls.

Overlap window and DST radar

The live gap is +7h right now, based on Europe/Berlin at +02:00 and Asia/Tokyo at +09:00. Europe/Berlin changes offset on October 25, 2026, so the gap moves to +8h after that transition.

The most usable workday block right now is about 1 hours: CET 9:00 AM previous day to 10:00 AM previous day, which lines up with JST 4:00 PM previous day to 5:00 PM previous day.

Europe/Berlin changes from +02:00 (GMT+2) to +01:00 (GMT+1) on October 25, 2026 at about 2:00 AM.

Reference zones

Europe/Berlin

GMT+2 · +02:00

Asia/Tokyo

GMT+9 · +09:00

These are the busiest live references selected from the abbreviation families on this page.

Conversion Table

CET	JST
02:00	09:00
03:00	10:00
04:00	11:00
05:00	12:00
06:00	13:00
07:00	14:00
08:00	15:00
09:00	16:00
10:00	17:00
11:00	18:00
12:00	19:00
13:00	20:00
14:00	21:00
15:00	22:00
16:00	23:00
17:00	00:00
18:00	01:00
19:00	02:00
20:00	03:00
21:00	04:00
22:00	05:00
23:00	06:00
00:00	07:00
01:00	08:00

Top cities using CET

Countries represented here include Germany, Spain, and Algeria.

BerlinGermany MadridSpain AlgiersAlgeria RomeItaly ParisFrance HamburgGermany BudapestHungary WarsawPoland ViennaAustria BarcelonaSpain

Top cities using JST

Countries represented here include Japan.

TokyoJapan YokohamaJapan OsakaJapan NagoyaJapan

FAQ

How many hours is JST ahead of CET?: JST is currently +7h relative to CET, using Europe/Berlin and Asia/Tokyo as the live reference zones on this page.
What is the best workday overlap between CET and JST?: The current 9-to-5 overlap is about 1 hours: CET 9:00 AM previous day to 10:00 AM previous day, which matches JST 4:00 PM previous day to 5:00 PM previous day.
Does the CET-JST time difference change during DST?: The live gap is +7h right now, based on Europe/Berlin at +02:00 and Asia/Tokyo at +09:00. Europe/Berlin changes offset on October 25, 2026, so the gap moves to +8h after that transition.
Which cities commonly use CET and JST?: CET commonly covers cities such as Berlin, Madrid, Algiers, and Rome, while JST commonly covers cities such as Tokyo, Yokohama, Osaka, and Nagoya.
Should I use CET/JST or exact IANA zones?: Use the abbreviations for a quick read, but use exact IANA zones such as Europe/Berlin and Asia/Tokyo when you need something precise in software, travel plans, or long-range scheduling.

Open Interactive Converter

Related Conversions

EST → CET EST → JST PST → CET PST → JST CST → CET CST → JST MST → CET MST → JST GMT → CET GMT → JST UTC → CET UTC → JST

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CET to JST Converter.

CET

JST

Scheduling snapshot

Pair context

Pair details

Calendar and scheduling context

Exact pair identity

Civil calendar differences

Same-offset caution

Jurisdiction evidence

Pair fingerprint

Offset behavior class

DST asymmetry check

Calendar evidence

Day-shift fingerprint

Same-offset and canonical audit

Indexing posture

Same-offset math check

Neighbor audit

Canonical evidence

Local intent behind each abbreviation

CET local intent 1

CET local intent 2

JST local intent 1

JST local intent 2

Country calendar contrast

Germany

Spain

Algeria

Italy

France

Japan

Neighboring abbreviation checks

From side: CEST

From side: CAT

From side: EEST

From side: EET

From side: WEST

From side: WET

To side: GMT+9

To side: KST

To side: PWT

To side: WIT

To side: YAKT

To side: ACDT

Jurisdiction and city roster

Abbreviation identity dossier

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From side country footprint

From side city anchors

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From side timezone narrative

From side policy and precision notes

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From side country reference summary

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Market coverage on both sides

Digit-roll converter

Common meeting times

CET to JST meeting times

JST to CET meeting times

Operational notes

Popular hour answers

What is 8 AM CET in JST?

What is 9 AM CET in JST?