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Données des villes par GeoNames (CC BY 4.0). Données de fuseaux horaires de la base de données des fuseaux horaires de l'IANA.

  1. WorldClockTools
  2. Convertisseur de Fuseau Horaire
  3. GMT -> PDT

Timezone converter

Convertisseur GMT vers PDT.

GMT → PDTGap: -8hNo 9-5 overlap

GMT to PDT currently uses Greenwich Mean Time in Europe/London and Pacific Time in America/Los_Angeles as the live reference pair, with a -8h live gap. GMT to PDT matters whenever London and Los Angeles need to coordinate across a -8h gap. The GMT side covers United Kingdom and Ivory Coast, while PDT covers United States and Mexico — 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 PDT 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: PDT → GMT

From

GMT

Greenwich Mean Time

Europe/London · GMT+1 +01:00

--:--:--

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

To

PDT

Pacific Time

America/Los_Angeles · PDT -07:00

--:--:--

Major markets in this grouping include Los Angeles, Tijuana, San Diego, Mexicali.

Scheduling snapshot

Current gap

-8h

GMT +01:00 vs PDT -07:00

9-to-5 overlap

No shared block

Meetings usually need an early or late handoff.

Representative countries

United Kingdom, Ivory Coast, and Mali / United States, Mexico, and Canada

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

Pair context

GMT (London, +01:00) to PDT (Los Angeles, -07:00) is currently a -8h conversion. Live coverage on the GMT side is anchored by London, Abidjan, Bamako, and Dakar; the PDT side draws from Los Angeles, Tijuana, San Diego, and Mexicali.

GMT to PDT matters whenever London and Los Angeles need to coordinate across a -8h gap. The GMT side covers United Kingdom and Ivory Coast, while PDT covers United States and Mexico — that country mix is the practical reason this conversion shows up in calendars rather than the abstract offset math.

This pair crosses the Atlantic, with one side in the Americas and the other in Europe or Africa. The -8h gap is small enough that there is still a real shared midday window, which is why transatlantic finance, broadcasting, and conference scheduling lean on this conversion.

Both GMT (Europe/London) and PDT (America/Los_Angeles) 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 PDT sit exactly 8h apart, which leaves no shared 9-to-5 block. Live meetings have to bend one side's day, so most teams settle for one of two narrow windows: very early on the late side, or very late on the early side. That makes async messages, recorded standups, and clear handoff notes more valuable than calendar invites.

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.

PDT coverage is led by Los Angeles, United States, Tijuana, Mexico, San Diego, United States, and Mexicali, Mexico, with 2 more anchoring the wider label family. Combined with the GMT side, this conversion ends up describing transatlantic finance, broadcast scheduling, and same-day cross-border product launches.

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
0
7
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3
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Common meeting times

GMT to PDT meeting times

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

GMTPDTDay relation
9:00 AM1:00 AMSun, Apr 26same day
12:00 PM4:00 AMSun, Apr 26same day
3:00 PM7:00 AMSun, Apr 26same day
6:00 PM10:00 AMSun, Apr 26same day
9:00 PM1:00 PMSun, Apr 26same day

PDT to GMT meeting times

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

PDTGMTDay relation
9:00 AM5:00 PMSun, Apr 26same day
12:00 PM8:00 PMSun, Apr 26same day
3:00 PM11:00 PMSun, Apr 26same day
6:00 PM2:00 AMMon, Apr 27next day
9:00 PM5:00 AMMon, Apr 27next day

Operational notes

GMT to PDT ranges from GMT 9:00 AM (which lands at PDT 1:00 AM) through GMT 9:00 PM (PDT 1:00 PM). With no clean 9-to-5 overlap between GMT and PDT, both ends of this range push outside standard hours — useful for recorded standups and async work, awkward for live calls.

PDT to GMT ranges from PDT 9:00 AM (which lands at GMT 5:00 PM) through PDT 9:00 PM (GMT 5:00 AM). With no clean 9-to-5 overlap between PDT and GMT, both ends of this range push outside standard hours — useful for recorded standups and async work, awkward for live calls.

Popular hour answers

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

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

What is 8 AM GMT in PDT?

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

What is 9 AM GMT in PDT?

9 AM GMT = 1:00 AM PDT (01:00). On today's live calendar that lands on Sun, Apr 26 in PDT, which means the answer is a same day conversion rather than a static offset lookup.

What is 10 AM GMT in PDT?

10 AM GMT = 2:00 AM PDT (02:00). On today's live calendar that lands on Sun, Apr 26 in PDT, which means the answer is a same day conversion rather than a static offset lookup.

What is 11 AM GMT in PDT?

11 AM GMT = 3:00 AM PDT (03:00). On today's live calendar that lands on Sun, Apr 26 in PDT, which means the answer is a same day conversion rather than a static offset lookup.

What is 12 PM GMT in PDT?

12 PM GMT = 4:00 AM PDT (04:00). On today's live calendar that lands on Sun, Apr 26 in PDT, which means the answer is a same day conversion rather than a static offset lookup.

What is 1 PM GMT in PDT?

1 PM GMT = 5:00 AM PDT (05:00). On today's live calendar that lands on Sun, Apr 26 in PDT, which means the answer is a same day conversion rather than a static offset lookup.

What is 2 PM GMT in PDT?

2 PM GMT = 6:00 AM PDT (06:00). On today's live calendar that lands on Sun, Apr 26 in PDT, which means the answer is a same day conversion rather than a static offset lookup.

What is 3 PM GMT in PDT?

3 PM GMT = 7:00 AM PDT (07:00). On today's live calendar that lands on Sun, Apr 26 in PDT, which means the answer is a same day conversion rather than a static offset lookup.

What is 4 PM GMT in PDT?

4 PM GMT = 8:00 AM PDT (08:00). On today's live calendar that lands on Sun, Apr 26 in PDT, which means the answer is a same day conversion rather than a static offset lookup.

What is 5 PM GMT in PDT?

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

What is 6 PM GMT in PDT?

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

What is 9 PM GMT in PDT?

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

Overlap window and DST radar

The live gap is -8h right now, based on Europe/London at +01:00 and America/Los_Angeles at -07:00. The zones change on different dates, so there is a DST mismatch window between October 25, 2026 and November 1, 2026. During that stretch the gap shifts to -7h before settling at -8h.

There is no strict 9 AM to 5 PM overlap right now, so this pair is better for handoffs, travel planning, or async coordination than for midday meetings.

Europe/London changes on October 25, 2026 at about 1:33 AM, moving from +00:00 to +00:00.
America/Los_Angeles changes on November 1, 2026 at about 1:03 AM, moving from -08:00 to -08:00.

Reference zones

Europe/London

GMT+1 · +01:00

America/Los_Angeles

PDT · -07:00

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

Tableau de Conversion

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

Top cities using GMT

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

LondonUnited KingdomAbidjanIvory CoastBamakoMaliDakarSenegalKumasiGhanaOuagadougouBurkina FasoLoméTogoAccraGhanaConakryGuineaCamayenneGuinea

Top cities using PDT

Countries represented here include United States, Mexico, and Canada.

Los AngelesUnited StatesTijuanaMexicoSan DiegoUnited StatesMexicaliMexicoSan JoseUnited StatesSan FranciscoUnited StatesSeattleUnited StatesVancouverCanadaPortlandUnited StatesLas VegasUnited States

FAQ

How many hours is PDT ahead of GMT?
PDT is currently -8h relative to GMT, using Europe/London and America/Los_Angeles as the live reference zones on this page.
What is the best workday overlap between GMT and PDT?
There is no strict 9-to-5 overlap right now, so one side usually needs an early start or late finish for live meetings.
Does the GMT-PDT time difference change during DST?
The live gap is -8h right now, based on Europe/London at +01:00 and America/Los_Angeles at -07:00. The zones change on different dates, so there is a DST mismatch window between October 25, 2026 and November 1, 2026. During that stretch the gap shifts to -7h before settling at -8h.
Which cities commonly use GMT and PDT?
GMT commonly covers cities such as London, Abidjan, Bamako, and Dakar, while PDT commonly covers cities such as Los Angeles, Tijuana, San Diego, and Mexicali.
Should I use GMT/PDT or exact IANA zones?
Use the abbreviations for a quick read, but use exact IANA zones such as Europe/London and America/Los_Angeles when you need something precise in software, travel plans, or long-range scheduling.
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Conversions Associées

EST → GMTPST → GMTCST → GMTMST → GMTGMT → UTCGMT → ISTGMT → CETGMT → CESTGMT → JSTGMT → AESTGMT → AEDTGMT → BST

Related planning pages

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Interactive converter

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