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Datos de ciudades por GeoNames (CC BY 4.0). Datos de zonas horarias de la Base de Datos de Zonas Horarias de IANA.

  1. WorldClockTools
  2. Convertidor de Zona Horaria
  3. GMT -> CEST

Timezone converter

Convertidor de GMT a CEST.

GMT → CESTGap: +1h7h 9-5 overlap

GMT to CEST currently uses Greenwich Mean Time in Europe/London and Central European Time in Europe/Berlin as the live reference pair, with a +1h live gap. GMT to CEST matters whenever London and Berlin need to coordinate across a +1h gap. The GMT side covers United Kingdom and Ivory Coast, while CEST covers Germany and Spain — that country mix is the practical reason this conversion shows up in calendars rather than the abstract offset math.

Last updated Apr 26, 2026. Offset math, DST behavior, and city coverage on both sides are refreshed from the live timezone dataset during the page revalidation window.

How this is calculated

How we calculate this
The current offset for each abbreviation is resolved against the live IANA timezone rules. Conversion accounts for DST transitions on both sides, so the gap between GMT and CEST can change by an hour twice a year.
Data sources
IANA Time Zone Database (offsets, DST). City attribution from GeoNames (CC BY 4.0).
Update cadence
Page regenerates daily; live offset values reflect the moment the page is rendered.
Reverse: CEST → GMT

From

GMT

Greenwich Mean Time

Europe/London · GMT+1 +01:00

--:--:--

Major markets in this grouping include London, Abidjan, Bamako, Dakar.

To

CEST

Central European Time

Europe/Berlin · GMT+2 +02:00

--:--:--

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

Scheduling snapshot

Current gap

+1h

GMT +01:00 vs CEST +02:00

9-to-5 overlap

7h

GMT 9:00 AM previous day to 4:00 PM previous day

Representative countries

United Kingdom, Ivory Coast, and Mali / Germany, Spain, and Algeria

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

Pair context

GMT (London, +01:00) to CEST (Berlin, +02:00) is currently a +1h conversion. Live coverage on the GMT side is anchored by London, Abidjan, Bamako, and Dakar; the CEST side draws from Berlin, Madrid, Algiers, and Rome.

GMT to CEST matters whenever London and Berlin need to coordinate across a +1h gap. The GMT side covers United Kingdom and Ivory Coast, while CEST covers Germany and Spain — that country mix is the practical reason this conversion shows up in calendars rather than the abstract offset math.

Both reference zones sit inside Europe, so this is a regional comparison rather than a long-haul conversion. The gap of +1h mostly affects intra-continental travel, regional logistics, and Europe-wide calendars.

Both GMT (Europe/London) and CEST (Europe/Berlin) observe daylight saving, but the shift dates do not always align. Expect short mismatch windows in spring and autumn when one side has changed and the other has not, which moves the live gap by an hour for several weeks at a time.

GMT and CEST sit exactly 1h apart, leaving a generous 7h 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.

Market coverage on both sides

GMT coverage on this page is led by London, United Kingdom, Abidjan, Ivory Coast, Bamako, Mali, and Dakar, Senegal, with 2 more in the live dataset. That mix is what makes GMT feel anchored to European working-day rhythms in practice rather than just an abbreviation on a chart.

CEST coverage is led by Berlin, Germany, Madrid, Spain, Algiers, Algeria, and Rome, Italy, with 2 more anchoring the wider label family. Combined with the GMT side, this conversion ends up describing intra-Europe regional logistics and travel coordination.

Digit-Roll Converter

Adjust the time — digits roll like an odometer. Swap button flips the zones.

FROM
1
4
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3
0
TO
1
6
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3
0

Common meeting times

GMT to CEST meeting times

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

GMTCESTDay relation
9:00 AM10:00 AMSun, Apr 26same day
12:00 PM1:00 PMSun, Apr 26same day
3:00 PM4:00 PMSun, Apr 26same day
6:00 PM7:00 PMSun, Apr 26same day
9:00 PM10:00 PMSun, Apr 26same day

CEST to GMT meeting times

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

CESTGMTDay relation
9:00 AM8:00 AMSun, Apr 26same day
12:00 PM11:00 AMSun, Apr 26same day
3:00 PM2:00 PMSun, Apr 26same day
6:00 PM5:00 PMSun, Apr 26same day
9:00 PM8:00 PMSun, Apr 26same day

Operational notes

GMT to CEST ranges from GMT 9:00 AM (which lands at CEST 10:00 AM) through GMT 9:00 PM (CEST 10:00 PM). GMT and CEST are close enough that this direction reads almost like a same-zone schedule — most GMT invites land on a sensible CEST hour without any extra effort.

CEST to GMT ranges from CEST 9:00 AM (which lands at GMT 8:00 AM) through CEST 9:00 PM (GMT 8:00 PM). CEST and GMT are close enough that this direction reads almost like a same-zone schedule — most CEST invites land on a sensible GMT hour without any extra effort.

Popular hour answers

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

8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM9 PM

What is 8 AM GMT in CEST?

8 AM GMT = 9:00 AM CEST (09:00). On today's live calendar that lands on Sun, Apr 26 in CEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 9 AM GMT in CEST?

9 AM GMT = 10:00 AM CEST (10:00). On today's live calendar that lands on Sun, Apr 26 in CEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 10 AM GMT in CEST?

10 AM GMT = 11:00 AM CEST (11:00). On today's live calendar that lands on Sun, Apr 26 in CEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 11 AM GMT in CEST?

11 AM GMT = 12:00 PM CEST (12:00). On today's live calendar that lands on Sun, Apr 26 in CEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 12 PM GMT in CEST?

12 PM GMT = 1:00 PM CEST (13:00). On today's live calendar that lands on Sun, Apr 26 in CEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 1 PM GMT in CEST?

1 PM GMT = 2:00 PM CEST (14:00). On today's live calendar that lands on Sun, Apr 26 in CEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 2 PM GMT in CEST?

2 PM GMT = 3:00 PM CEST (15:00). On today's live calendar that lands on Sun, Apr 26 in CEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 3 PM GMT in CEST?

3 PM GMT = 4:00 PM CEST (16:00). On today's live calendar that lands on Sun, Apr 26 in CEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 4 PM GMT in CEST?

4 PM GMT = 5:00 PM CEST (17:00). On today's live calendar that lands on Sun, Apr 26 in CEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 5 PM GMT in CEST?

5 PM GMT = 6:00 PM CEST (18:00). On today's live calendar that lands on Sun, Apr 26 in CEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 6 PM GMT in CEST?

6 PM GMT = 7:00 PM CEST (19:00). On today's live calendar that lands on Sun, Apr 26 in CEST, which means the answer is a same day conversion rather than a static offset lookup.

What is 9 PM GMT in CEST?

9 PM GMT = 10:00 PM CEST (22:00). On today's live calendar that lands on Sun, Apr 26 in CEST, which means the answer is a same day conversion rather than a static offset lookup.

Overlap window and DST radar

The live gap is +1h right now, based on Europe/London at +01:00 and Europe/Berlin at +02:00. Both zones change on October 25, 2026, so the gap usually stays close to +1h.

The most usable workday block right now is about 7 hours: GMT 9:00 AM previous day to 4:00 PM previous day, which lines up with CEST 10:00 AM previous day to 5:00 PM previous day.

Europe/London changes on October 25, 2026 at about 1:30 AM, moving from +00:00 to +00:00.
Europe/Berlin changes on October 25, 2026 at about 2:30 AM, moving from +01:00 to +01:00.

Reference zones

Europe/London

GMT+1 · +01:00

Europe/Berlin

GMT+2 · +02:00

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

Tabla de Conversión

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

Top cities using GMT

Countries represented here include United Kingdom, Ivory Coast, and Mali.

LondonUnited KingdomAbidjanIvory CoastBamakoMaliDakarSenegalKumasiGhanaOuagadougouBurkina FasoLoméTogoAccraGhanaConakryGuineaCamayenneGuinea

Top cities using CEST

Countries represented here include Germany, Spain, and Algeria.

BerlinGermanyMadridSpainAlgiersAlgeriaRomeItalyParisFranceHamburgGermanyBudapestHungaryWarsawPolandViennaAustriaBarcelonaSpain

FAQ

How many hours is CEST ahead of GMT?
CEST is currently +1h relative to GMT, using Europe/London and Europe/Berlin as the live reference zones on this page.
What is the best workday overlap between GMT and CEST?
The current 9-to-5 overlap is about 7 hours: GMT 9:00 AM previous day to 4:00 PM previous day, which matches CEST 10:00 AM previous day to 5:00 PM previous day.
Does the GMT-CEST time difference change during DST?
The live gap is +1h right now, based on Europe/London at +01:00 and Europe/Berlin at +02:00. Both zones change on October 25, 2026, so the gap usually stays close to +1h.
Which cities commonly use GMT and CEST?
GMT commonly covers cities such as London, Abidjan, Bamako, and Dakar, while CEST commonly covers cities such as Berlin, Madrid, Algiers, and Rome.
Should I use GMT/CEST or exact IANA zones?
Use the abbreviations for a quick read, but use exact IANA zones such as Europe/London and Europe/Berlin when you need something precise in software, travel plans, or long-range scheduling.
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Conversiones Relacionadas

EST → GMTEST → CESTPST → GMTPST → CESTCST → GMTCST → CESTMST → GMTMST → CESTGMT → UTCGMT → ISTGMT → CETGMT → JST

Related planning pages

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Interactive converter

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