GMT to San Diego Time Converter
PST is 8 hours behind GMT. 9:00 AM GMT = 1:00 AM PST.
PST is 8 hours behind GMT at the moment. To convert GMT to San Diego Time, subtract 8 hours from the GMT time: 9:00 AM GMT = 1:00 AM PST.
GMT (GMT) is used in Same offset as UTC. The UK and Ireland use GMT in winter; Iceland, Ghana and Senegal all year. San Diego Time (San Diego time) is used in San Diego, USA.
The UK is on GMT only in winter; in summer it uses BST (UTC+1).
GMT to San Diego Time time conversion table
GMT to San Diego Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| GMT | San Diego Time | Day |
|---|---|---|
| 12:00 AM GMT | 4:00 PM PST | previous day |
| 1:00 AM GMT | 5:00 PM PST | previous day |
| 2:00 AM GMT | 6:00 PM PST | previous day |
| 3:00 AM GMT | 7:00 PM PST | previous day |
| 4:00 AM GMT | 8:00 PM PST | previous day |
| 5:00 AM GMT | 9:00 PM PST | previous day |
| 6:00 AM GMT | 10:00 PM PST | previous day |
| 7:00 AM GMT | 11:00 PM PST | previous day |
| 8:00 AM GMT | 12:00 AM PST | night |
| 9:00 AM GMT | 1:00 AM PST | night |
| 10:00 AM GMT | 2:00 AM PST | night |
| 11:00 AM GMT | 3:00 AM PST | night |
| 12:00 PM GMT | 4:00 AM PST | night |
| 1:00 PM GMT | 5:00 AM PST | night |
| 2:00 PM GMT | 6:00 AM PST | — |
| 3:00 PM GMT | 7:00 AM PST | — |
| 4:00 PM GMT | 8:00 AM PST | — |
| 5:00 PM GMT | 9:00 AM PST | — |
| 6:00 PM GMT | 10:00 AM PST | — |
| 7:00 PM GMT | 11:00 AM PST | — |
| 8:00 PM GMT | 12:00 PM PST | — |
| 9:00 PM GMT | 1:00 PM PST | — |
| 10:00 PM GMT | 2:00 PM PST | — |
| 11:00 PM GMT | 3:00 PM PST | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert GMT to San Diego Time
Subtract 8 hours from the GMT time to get San Diego Time.
Example: 9:00 AM GMT = 1:00 AM PST.
Across midnight: 1:00 AM GMT = 5:00 PM PST (previous day). The date changes, so always check the day as well as the hour.
Time difference between GMT and San Diego Time
The time difference between GMT and San Diego Time is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 1 Jan 2026 – 7 Mar 2026: San Diego Time is 8 hours behind of GMT.
- 8 Mar 2026 – 31 Oct 2026: San Diego Time is 7 hours behind of GMT.
- 1 Nov 2026 – 31 Dec 2026: San Diego Time is 8 hours behind of GMT.
GMT and San Diego Time during daylight saving time
- GMT does not observe daylight saving time; it stays on UTC+0 all year.
- San Diego Time next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from PST (UTC−8) to PDT (UTC−7).
Best time for a meeting between GMT and San Diego Time
GMT and San Diego Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 3:00 PM GMT, which is 7:00 AM PST.
GMT to San Diego Time FAQ
What is the time difference between GMT and San Diego Time?
Right now PST is 8 hours behind GMT. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM GMT in San Diego Time?
9:00 AM GMT is 1:00 AM PST.
What is 12 PM (noon) GMT in San Diego Time?
12:00 PM GMT is 4:00 AM PST.
Is San Diego Time ahead of or behind GMT?
PST is 8 hours behind GMT, so it is earlier in San Diego Time than in GMT.
Does GMT change for daylight saving time?
No. GMT stays on the same offset all year, so conversions never shift for daylight saving time.
Does San Diego Time change for daylight saving time?
Yes. San Diego Time next changes on 14 Mar 2027, when clocks go forward one hour from PST to PDT.
What is the best time for a meeting between GMT and San Diego Time?
GMT and San Diego Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 3:00 PM GMT, which is 7:00 AM PST.
Related conversions
Convert San Diego Time to GMT
Convert GMT to other time zones
Convert other time zones to San Diego Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.