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Zone to zone

PST to GMT — Greenwich Mean Time is 8 hours ahead

Greenwich Mean Time (GMT) is 8 hours ahead of Pacific Time (PST) while both are on standard time. The gap stays the same throughout the year, which makes this one of the easier pairs to schedule against.

Standard time

8 hours ahead

Applies while neither zone is on daylight saving — broadly November to March in the northern hemisphere.

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How the two zones line up

Pacific Time sits at UTC−8 in winter and UTC−7 in summer. Greenwich Mean Time sits at UTC+0 and UTC+1 respectively. The difference between those two offsets is the number you add or subtract.

Daylight saving

The overlap is narrow — roughly an hour or two. Protect that window for anything that genuinely needs both parties live.

Where this conversion gets used

  • Transatlantic client calls
  • European market open
  • product launches
  • agency handovers
  • earnings announcements

PST to GMT — every hour

Both columns are computed from the IANA database, so they follow the real transition dates.

PSTGMT — standard
12:00 am8:00 am
1:00 am9:00 am
2:00 am10:00 am
3:00 am11:00 am
4:00 am12:00 pm
5:00 am1:00 pm
6:00 am2:00 pm
7:00 am3:00 pm
8:00 am4:00 pm
9:00 am5:00 pm
10:00 am6:00 pm
11:00 am7:00 pm
12:00 pm8:00 pm
1:00 pm9:00 pm
2:00 pm10:00 pm
3:00 pm11:00 pm
4:00 pm12:00 am (next day)
5:00 pm1:00 am (next day)
6:00 pm2:00 am (next day)
7:00 pm3:00 am (next day)
8:00 pm4:00 am (next day)
9:00 pm5:00 am (next day)
10:00 pm6:00 am (next day)
11:00 pm7:00 am (next day)

Questions people ask

8 hours ahead, and that does not change during the year.

Related conversions

CET to ESTEST to BSTGMT to PSTPST to CET

All conversions →

Booking something recurring?

A fixed clock time drifts when either side changes its clocks. Our guides explain how to stop that happening.

Read the DST guidePlan a meeting