Timezone converter

JST to AEST Converter.

JST → AESTGap: +2h6h 9-5 overlap

JST to AEST currently uses Japan Time in Asia/Tokyo and Australian Eastern Time in Australia/Sydney as the live reference pair, with a +2h live gap. AEST and JST is a tight one-hour pair between eastern Australia and Japan. It is mostly used by mining-and-resources companies, regional sports broadcasters, and travel itineraries hopping between Sydney and Tokyo.

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

From

JST

Japan Time

Asia/Tokyo · GMT+9 +09:00

--:--:--

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

To

AEST

Australian Eastern Time

Australia/Sydney · GMT+11 +11:00

--:--:--

Major markets in this grouping include Sydney, Brisbane, Gold Coast, Newcastle.

Scheduling snapshot

Current gap

+2h

JST +09:00 vs AEST +11:00

9-to-5 overlap

6h

JST 9:00 AM previous day to 3:00 PM previous day

Representative countries

Japan / Australia

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

Pair context

JST (Tokyo, +09:00) to AEST (Sydney, +11:00) is currently a +2h conversion. Live coverage on the JST side is anchored by Tokyo, Yokohama, Osaka, and Nagoya; the AEST side draws from Sydney, Brisbane, Gold Coast, and Newcastle.

AEST and JST is a tight one-hour pair between eastern Australia and Japan. It is mostly used by mining-and-resources companies, regional sports broadcasters, and travel itineraries hopping between Sydney and Tokyo.

The pair sits +2h apart across Asia and Oceania, which usually allows a meaningful shared workday on at least one end.

AEST follows seasonal clock changes through Australia/Sydney, while JST stays on a fixed offset year-round. The result is a gap that quietly shifts by an hour twice a year — short by an hour in winter (or summer, depending on hemisphere) and back to normal afterwards.

JST and AEST sit exactly 2h apart, leaving a generous 6h of shared 9-to-5 time. With that much overlap, this pair behaves almost like a single workday, so meeting times are negotiable rather than forced into a narrow corner of the calendar.

Pair details

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

Reference pair

Asia/Tokyo -> Australia/Sydney

Live offsets

JST +09:00 vs AEST +11:00

Meaning split

Japan Time / Australian Eastern Time

Country anchors

Japan -> Australia

City anchors

Tokyo, Yokohama, Osaka, Nagoya -> Sydney, Brisbane, Gold Coast, Newcastle

Workday overlap

6h window: JST 9:00 AM previous day-3:00 PM previous day

Morning answer

9 AM JST = 11:00 AM AEST, same day

Evening answer

6 PM JST = 8:00 PM AEST, same 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

JST to AEST is pinned to Asia/Tokyo -> Australia/Sydney, with the shorthand labels shown as context. The city anchors are Tokyo, Yokohama, Osaka, Nagoya on the JST side and Sydney, Brisbane, Gold Coast, Newcastle on the AEST side, with +2h between the live reference zones.

Civil calendar differences

The 12 popular-hour answers include 12 same-day conversions, 0 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 GMT+9 (From side), KST (From side), PWT (From side), WIT (From side), YAKT (From side), AEDT (To side). They may match mathematically, but their country calendars, city anchors, and common search intent differ from this exact pair.

Jurisdiction evidence

JST: Japan (JP); 1296 mapped cities; capital Tokyo; Japanese; JPY Japanese yen | AEST: Australia (AU); 137 mapped cities; capital Canberra; English; AUD Australian dollar

Pair fingerprint

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

Offset behavior class

JST/AEST is a short-haul offset gap: Asia/Tokyo currently reads +09:00, Australia/Sydney reads +11:00, and the live delta is +2h. This class decides whether the page behaves like a same-day planner or a handoff planner.

DST asymmetry check

Australia/Sydney changes from +11:00 (GMT+11) to +10:00 (GMT+10) on April 4, 2027 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 12 same-day answers, 0 next-day answers, 0 previous-day answers. That mix is specific to the current Asia/Tokyo -> Australia/Sydney 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: Asia/Tokyo -> Australia/Sydney, country anchors, city anchors, calendar notes, and day-shift examples.

Same-offset math check

JST and AEST are not currently a same-offset pair; the live delta is +2h. Same-offset neighbors are still listed because users often confuse nearby abbreviations.

Neighbor audit

GMT+9 (From side, +09:00), KST (From side, +09:00), PWT (From side, +09:00), WIT (From side, +09:00), YAKT (From side, +09:00), AEDT (To side, +11:00) The page keeps these labels visible so SGT/HKT/GST-style clusters do not blur into one generic offset page.

Canonical evidence

JST/AEST uses 12 same-day answers, 0 next-day answers, 0 previous-day answers; 6h strict workday overlap; source zones Asia/Tokyo and Australia/Sydney; country anchors Japan -> Australia.

Local intent behind each abbreviation

Common places, calendars, markets, languages, and operating contexts behindJST and AEST.

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.

AEST

AEST local intent 1

AEST is Australian Eastern Standard Time, commonly used for Brisbane, parts of Queensland, and eastern-Australia winter schedules. It is not interchangeable with AEDT because Queensland does not follow the same daylight-saving behavior as Sydney or Melbourne.

AEST

AEST local intent 2

AEST planning often means Australian business handoffs, mining and energy operations in Queensland, Brisbane flight timing, and cross-state scheduling where one Australian city may switch clocks while another does not.

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.

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)

AEST

Australia

137 mapped city anchors; zones Australia/Brisbane, Australia/Sydney.capital Canberra; English; AUD Australian dollar

Holiday snapshot: New Year's Day (Jan 1, Public) · Australia Day (Jan 26, Public) · Labour Day (Mar 2, Public) · Canberra Day (Mar 9, Public) · Adelaide Cup Day (Mar 9, 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: 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

From 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

From 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

From 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

From 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

From side: ACWST

nearby

JST and ACWST 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
ACWST: Australian Central Western Time via Australia/Eucla, +08:45; cities No country breakdown available; countries Australia.
Open ACWST

To side: AEDT

same offset

AEST and AEDT 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
AEST: Australian Eastern Time via Australia/Sydney, +11:00; cities Sydney, Australia, Brisbane, Australia, and Gold Coast, Australia; countries Australia.
Neighbor side
AEDT: Australian Eastern Time via Australia/Sydney, +11:00; cities Sydney, Australia, Brisbane, Australia, and Gold Coast, Australia; countries Australia.
Open AEDT

To side: ACDT

nearby

AEST 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
AEST: Australian Eastern Time via Australia/Sydney, +11:00; cities Sydney, Australia, Brisbane, Australia, and Gold Coast, Australia; countries Australia.
Neighbor side
ACDT: Australian Central Time via Australia/Adelaide, +10:30; cities Adelaide, Australia, Darwin, Australia, and Adelaide Hills, Australia; countries Australia.
Open ACDT

To side: ACST

nearby

AEST and ACST 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
AEST: Australian Eastern Time via Australia/Sydney, +11:00; cities Sydney, Australia, Brisbane, Australia, and Gold Coast, Australia; countries Australia.
Neighbor side
ACST: Australian Central Time via Australia/Adelaide, +10:30; cities Adelaide, Australia, Darwin, Australia, and Adelaide Hills, Australia; countries Australia.
Open ACST

To side: ACWST

nearby

AEST and ACWST 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
AEST: Australian Eastern Time via Australia/Sydney, +11:00; cities Sydney, Australia, Brisbane, Australia, and Gold Coast, Australia; countries Australia.
Neighbor side
ACWST: Australian Central Western Time via Australia/Eucla, +08:45; cities No country breakdown available; countries Australia.
Open ACWST

To side: AWST

nearby

AEST and AWST 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
AEST: Australian Eastern Time via Australia/Sydney, +11:00; cities Sydney, Australia, Brisbane, Australia, and Gold Coast, Australia; countries Australia.
Neighbor side
AWST: Australian Western Time via Australia/Perth, +08:00; cities Perth, Australia, Mandurah, Australia, and Bunbury, Australia; countries Australia and Antarctica.
Open AWST

To side: WIT

nearby

AEST and WIT 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
AEST: Australian Eastern Time via Australia/Sydney, +11:00; cities Sydney, Australia, Brisbane, Australia, and Gold Coast, Australia; countries Australia.
Neighbor side
WIT: Eastern Indonesia Time via Asia/Jayapura, +09:00; cities Jayapura, Indonesia, Ambon, Indonesia, and Sorong, Indonesia; countries Indonesia.
Open WIT

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 theJST to AEST page grounded in those concrete places.

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.

AEST: Australia (AU); 137 mapped cities; zones Australia/Brisbane, Australia/Sydney; city anchors Sydney (Australia/Sydney, pop 5,557,233), Brisbane (Australia/Brisbane, pop 2,780,063), Gold Coast (Australia/Brisbane, pop 640,778), Newcastle (Australia/Sydney, pop 508,437); official Commonwealth of Australia; capital Canberra; region Oceania; subregion Australia and New Zealand; population 27,536,874; area 7,692,024 km2; languages English; currency AUD Australian dollar.

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 JST and AEST.

From 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.

From 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.

From 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].

From side jurisdiction dossier

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.

To side meaning roster

AEST (aest) is not marked ambiguous in the abbreviation catalog. Meaning records: Australian Eastern Time at UTC+10:00; listed zones Australia/Brisbane; Australia/Sydney; source label Australian Eastern Time - Brisbane, Gold Coast, Sunshine Coast, Logan City.

To side country footprint

AEST currently maps to 1 country footprint in the converter dataset: Australia (AU). The footprint spans 2 IANA zones across 10 city anchors.

To side city anchors

AEST city anchors in this indexed page family: Sydney [sydney-AU, AU, Australia/Sydney, pop 5,557,233]; Brisbane [brisbane-AU, AU, Australia/Brisbane, pop 2,780,063]; Gold Coast [gold-coast-AU, AU, Australia/Brisbane, pop 640,778]; Newcastle [newcastle-AU, AU, Australia/Sydney, pop 508,437]; Canberra [canberra-AU, AU, Australia/Sydney, pop 367,752]; Central Coast [central-coast-AU, AU, Australia/Sydney, pop 346,596]; Sunshine Coast [sunshine-coast-AU, AU, Australia/Brisbane, pop 346,522]; Logan City [logan-city-AU, AU, Australia/Brisbane, pop 345,098]; Wollongong [wollongong-AU, AU, Australia/Sydney, pop 280,153]; Townsville [townsville-AU, AU, Australia/Brisbane, pop 201,313].

To side jurisdiction dossier

AEST: Australia (AU); 137 mapped cities; zones Australia/Brisbane, Australia/Sydney; city anchors Sydney (Australia/Sydney, pop 5,557,233), Brisbane (Australia/Brisbane, pop 2,780,063), Gold Coast (Australia/Brisbane, pop 640,778), Newcastle (Australia/Sydney, pop 508,437); official Commonwealth of Australia; capital Canberra; region Oceania; subregion Australia and New Zealand; population 27,536,874; area 7,692,024 km2; languages English; currency AUD Australian dollar.

From 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.

From 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.

From 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); ACWST (+08:45, Runs on a nearby UTC offset).

From side answer profile

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

To side timezone narrative

AEST is used in this dataset for Australian Eastern Time. Right now it maps to 1 meaning, 2 IANA zones, and 1 country. The busiest cities using AEST in the current catalog are Sydney, Brisbane, Gold Coast, Newcastle, and Canberra. The lead live reference on this page is Sydney (Australia/Sydney), currently at +11:00 (GMT+11). Those cities are what give AEST its actual feel rather than the abstract offset. AEST currently shows +11:00, but Australia/Sydney observes seasonal clock changes — the next transition is around April 4, 2027. 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.

To side policy and precision notes

AEST 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. Australia/Sydney has an upcoming offset change on April 4, 2027. After that point, AEST 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 AEST is the exact IANA zone used by your city or system. Australia/Sydney sits at +11:00, 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

AEST should not be blindly swapped with nearby labels. Adjacent references in the catalog: AEDT (+11:00, Shares the australian and eastern time family); ACDT (+10:30, Shares the australian time family); ACST (+10:30, Shares the australian time family); ACWST (+08:45, Shares the australian time family); AWST (+08:00, Shares the australian time family); WIT (+09:00, Shares the eastern time family).

To side answer profile

AEST has 1 meaning record, offset range UTC+10:00 to UTC+11:00, labels Australian Eastern Time, and 1 country footprint across 2 IANA zones.

From 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.

To side country reference summary

AEST country anchor Australia: Australia, officially the Commonwealth of Australia, is a country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands. It has a land area of 7,688,287 km2 (2,968,464 sq mi), making it the sixth-largest country in the world. Australia is the world's flattest and driest inhabited continent. It is a megadiverse country, and its size gives it a wide variety of landscapes and climates including deserts in the interior and tropical rainforests along the coast. Source: Wikipedia.

From side trust note 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.

From side trust note 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.

To side trust note 1

AEST is Australian Eastern Standard Time, commonly used for Brisbane, parts of Queensland, and eastern-Australia winter schedules. It is not interchangeable with AEDT because Queensland does not follow the same daylight-saving behavior as Sydney or Melbourne.

To side trust note 2

AEST planning often means Australian business handoffs, mining and energy operations in Queensland, Brisbane flight timing, and cross-state scheduling where one Australian city may switch clocks while another does not.

Pair identity check

JST/AEST uses Asia/Tokyo -> Australia/Sydney, offset delta +2h, overlap 6h, route /convert/jst/aest/, and live abbreviation readings GMT+9/GMT+11.

Market coverage on both sides

JST coverage on this page is led by Tokyo, Japan, Yokohama, Japan, Osaka, Japan, and Nagoya, Japan, with 2 more in the live dataset. That mix is what makes JST feel anchored to East Asian financial centers in practice rather than just an abbreviation on a chart.

AEST coverage is led by Sydney, Australia, Brisbane, Australia, Gold Coast, Australia, and Newcastle, Australia, with 2 more anchoring the wider label family. Combined with the JST side, this conversion ends up describing regional business coordination where the gap is small enough that meetings stay inside normal hours on both sides.

Digit-roll converter

Adjust the time. Digits roll like an odometer, and the swap button flips the zones.

From
1
4
:
3
0
To
1
6
:
3
0

Same day in both places.

Common meeting times

JST to AEST meeting times

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

JSTAESTDay relation
9:00 AM11:00 AMFri, Nov 6same day
12:00 PM2:00 PMFri, Nov 6same day
3:00 PM5:00 PMFri, Nov 6same day
6:00 PM8:00 PMFri, Nov 6same day
9:00 PM11:00 PMFri, Nov 6same day

AEST to JST meeting times

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

AESTJSTDay relation
9:00 AM7:00 AMFri, Nov 6same day
12:00 PM10:00 AMFri, Nov 6same day
3:00 PM1:00 PMFri, Nov 6same day
6:00 PM4:00 PMFri, Nov 6same day
9:00 PM7:00 PMFri, Nov 6same day

Operational notes

JST to AEST ranges from JST 9:00 AM (which lands at AEST 11:00 AM) through JST 9:00 PM (AEST 11:00 PM). The +2h gap is small enough that JST mornings still reach AEST working hours, so most invites scheduled in JST land cleanly without confusing the AEST recipient.

AEST to JST ranges from AEST 9:00 AM (which lands at JST 7:00 AM) through AEST 9:00 PM (JST 7:00 PM). The +2h gap is small enough that AEST mornings still reach JST working hours, so most invites scheduled in AEST land cleanly without confusing the JST recipient.

Popular hour answers

These direct answers are here for the exact-intent searches people actually use, like “10 AM JST to AEST” or “4 PM JST in AEST”.

What is 8 AM JST in AEST?

8 AM JST = 10:00 AM AEST (10:00). On today's live calendar that lands on Fri, Nov 6 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 9 AM JST in AEST?

9 AM JST = 11:00 AM AEST (11:00). On today's live calendar that lands on Fri, Nov 6 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 10 AM JST in AEST?

10 AM JST = 12:00 PM AEST (12:00). On today's live calendar that lands on Fri, Nov 6 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 11 AM JST in AEST?

11 AM JST = 1:00 PM AEST (13:00). On today's live calendar that lands on Fri, Nov 6 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 12 PM JST in AEST?

12 PM JST = 2:00 PM AEST (14:00). On today's live calendar that lands on Fri, Nov 6 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 1 PM JST in AEST?

1 PM JST = 3:00 PM AEST (15:00). On today's live calendar that lands on Fri, Nov 6 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 2 PM JST in AEST?

2 PM JST = 4:00 PM AEST (16:00). On today's live calendar that lands on Fri, Nov 6 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 3 PM JST in AEST?

3 PM JST = 5:00 PM AEST (17:00). On today's live calendar that lands on Fri, Nov 6 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 4 PM JST in AEST?

4 PM JST = 6:00 PM AEST (18:00). On today's live calendar that lands on Fri, Nov 6 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 5 PM JST in AEST?

5 PM JST = 7:00 PM AEST (19:00). On today's live calendar that lands on Fri, Nov 6 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 6 PM JST in AEST?

6 PM JST = 8:00 PM AEST (20:00). On today's live calendar that lands on Fri, Nov 6 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 9 PM JST in AEST?

9 PM JST = 11:00 PM AEST (23:00). On today's live calendar that lands on Fri, Nov 6 in AEST, which means the answer is a same day conversion rather than a static offset lookup.

Overlap window and DST radar

The live gap is +2h right now, based on Asia/Tokyo at +09:00 and Australia/Sydney at +11:00. Australia/Sydney changes offset on April 4, 2027, so the gap moves to +1h after that transition.

The most usable workday block right now is about 6 hours: JST 9:00 AM previous day to 3:00 PM previous day, which lines up with AEST 11:00 AM previous day to 5:00 PM previous day.

Australia/Sydney changes from +11:00 (GMT+11) to +10:00 (GMT+10) on April 4, 2027 at about 2:00 AM.

Reference zones

Asia/Tokyo

GMT+9 · +09:00

Australia/Sydney

GMT+11 · +11:00

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

Conversion Table

JSTAEST
09:0011:00
10:0012:00
11:0013:00
12:0014:00
13:0015:00
14:0016:00
15:0017:00
16:0018:00
17:0019:00
18:0020:00
19:0021:00
20:0022:00
21:0023:00
22:0000:00
23:0001:00
00:0002:00
01:0003:00
02:0004:00
03:0005:00
04:0006:00
05:0007:00
06:0008:00
07:0009:00
08:0010:00

Top cities using JST

Countries represented here include Japan.

FAQ

How many hours is AEST ahead of JST?
AEST is currently +2h relative to JST, using Asia/Tokyo and Australia/Sydney as the live reference zones on this page.
What is the best workday overlap between JST and AEST?
The current 9-to-5 overlap is about 6 hours: JST 9:00 AM previous day to 3:00 PM previous day, which matches AEST 11:00 AM previous day to 5:00 PM previous day.
Does the JST-AEST time difference change during DST?
The live gap is +2h right now, based on Asia/Tokyo at +09:00 and Australia/Sydney at +11:00. Australia/Sydney changes offset on April 4, 2027, so the gap moves to +1h after that transition.
Which cities commonly use JST and AEST?
JST commonly covers cities such as Tokyo, Yokohama, Osaka, and Nagoya, while AEST commonly covers cities such as Sydney, Brisbane, Gold Coast, and Newcastle.
Should I use JST/AEST or exact IANA zones?
Use the abbreviations for a quick read, but use exact IANA zones such as Asia/Tokyo and Australia/Sydney when you need something precise in software, travel plans, or long-range scheduling.
Open Interactive Converter

Related Conversions

Related planning pages

Once a conversion pair matters, people usually need a city page, compare page, or a broader browse surface next.