Convert Greenwich Mean Time (GMT) to Pacific Time (PST/PDT), with daylight saving applied for the exact date you pick.
Tue, Oct 27
Tue, Oct 27 Same day
| Su | Mo | Tu | We | Th | Fr | Sa |
|---|
GMT 9 to 5 PDT 9 to 5
PDT is 7 hours behind GMT.
The same conversion works for every city on these clocks, such as Greenwich to California and Greenwich to Los Angeles.
Shaded areas follow the official zone boundaries, so a country split across zones is split here too. Hover or tap a region for its local time.
Every hour of Tuesday, October 27, 2026, side by side. Days with a clock change show 23 or 25 rows.
Shaded rows fall inside working hours in both places.
| Greenwich (GMT) | Los Angeles (PDT) | Working hours |
|---|---|---|
| 12:00 AM | 5:00 PM previous day | |
| 1:00 AM | 6:00 PM previous day | |
| 2:00 AM | 7:00 PM previous day | |
| 3:00 AM | 8:00 PM previous day | |
| 4:00 AM | 9:00 PM previous day | |
| 5:00 AM | 10:00 PM previous day | |
| 6:00 AM | 11:00 PM previous day | |
| 7:00 AM | 12:00 AM | |
| 8:00 AM | 1:00 AM | |
| 9:00 AM | 2:00 AM | |
| 10:00 AM | 3:00 AM | |
| 11:00 AM | 4:00 AM | |
| 12:00 PM | 5:00 AM | |
| 1:00 PM | 6:00 AM | |
| 2:00 PM | 7:00 AM | |
| 3:00 PM | 8:00 AM | |
| 4:00 PM | 9:00 AM | Both working |
| 5:00 PM | 10:00 AM | |
| 6:00 PM | 11:00 AM | |
| 7:00 PM | 12:00 PM | |
| 8:00 PM | 1:00 PM | |
| 9:00 PM | 2:00 PM | |
| 10:00 PM | 3:00 PM | |
| 11:00 PM | 4:00 PM |
Every hour of the Greenwich Mean Time day, plus the common half hours, and their PST equivalents. The second column covers the part of the year when the clocks are on a different gap.
| Greenwich Mean Time | PDT 7 h behind, most of the year (238 days in 2026) | PST 8 h behind, about 18 weeks in 2026 |
|---|---|---|
| 12:00 AM | 5:00 PM (previous day) | 4:00 PM (previous day) |
| 1:00 AM | 6:00 PM (previous day) | 5:00 PM (previous day) |
| 2:00 AM | 7:00 PM (previous day) | 6:00 PM (previous day) |
| 3:00 AM | 8:00 PM (previous day) | 7:00 PM (previous day) |
| 4:00 AM | 9:00 PM (previous day) | 8:00 PM (previous day) |
| 5:00 AM | 10:00 PM (previous day) | 9:00 PM (previous day) |
| 6:00 AM | 11:00 PM (previous day) | 10:00 PM (previous day) |
| 7:00 AM | 12:00 AM | 11:00 PM (previous day) |
| 8:00 AM | 1:00 AM | 12:00 AM |
| 9:00 AM | 2:00 AM | 1:00 AM |
| 9:30 AM | 2:30 AM | 1:30 AM |
| 10:00 AM | 3:00 AM | 2:00 AM |
| 10:30 AM | 3:30 AM | 2:30 AM |
| 11:00 AM | 4:00 AM | 3:00 AM |
| 11:30 AM | 4:30 AM | 3:30 AM |
| 12:00 PM | 5:00 AM | 4:00 AM |
| 12:30 PM | 5:30 AM | 4:30 AM |
| 1:00 PM | 6:00 AM | 5:00 AM |
| 1:30 PM | 6:30 AM | 5:30 AM |
| 2:00 PM | 7:00 AM | 6:00 AM |
| 2:30 PM | 7:30 AM | 6:30 AM |
| 3:00 PM | 8:00 AM | 7:00 AM |
| 3:30 PM | 8:30 AM | 7:30 AM |
| 4:00 PM | 9:00 AM | 8:00 AM |
| 4:30 PM | 9:30 AM | 8:30 AM |
| 5:00 PM | 10:00 AM | 9:00 AM |
| 5:30 PM | 10:30 AM | 9:30 AM |
| 6:00 PM | 11:00 AM | 10:00 AM |
| 7:00 PM | 12:00 PM | 11:00 AM |
| 8:00 PM | 1:00 PM | 12:00 PM |
| 9:00 PM | 2:00 PM | 1:00 PM |
| 10:00 PM | 3:00 PM | 2:00 PM |
| 11:00 PM | 4:00 PM | 3:00 PM |
Each row is a stretch of days with one constant difference, split at every clock change.
| Dates | GMT | PST | Difference |
|---|---|---|---|
| Thu, Jan 1, 2026 until Sun, Mar 8, 2026 | GMT | PST | PST 8 h behind |
| Sun, Mar 8, 2026 until Sun, Nov 1, 2026 | GMT | PDT | PDT 7 h behind |
| Sun, Nov 1, 2026 until Sun, Mar 14, 2027 | GMT | PST | PST 8 h behind |
| Sun, Mar 14, 2027 until Sun, Nov 7, 2027 | GMT | PDT | PDT 7 h behind |
| Sun, Nov 7, 2027 until Sat, Jan 1, 2028 | GMT | PST | PST 8 h behind |
Greenwich Mean Time is UTC+0 and, for everyday purposes, the same clock as UTC. It does not shift for daylight saving time.
The UK uses GMT only in winter and British Summer Time (BST, UTC+1) in summer. For London time, use the UK time pages.
Pacific Time follows the clock in Los Angeles: Pacific Standard Time (PST, UTC−8) in winter and Pacific Daylight Time (PDT, UTC−7) during US daylight saving time.
PST is often used loosely for Pacific Time all year. In summer the correct abbreviation is PDT; the converter uses whichever applies on your date.
PDT is 7 hours behind GMT for most of the year (238 days in 2026). The gap is 8 hours for about 18 weeks in 2026.
California uses Pacific Time. PDT is 7 hours behind GMT for most of the year (238 days in 2026). The gap is 8 hours for about 18 weeks in 2026. Type any GMT time into the GMT to PST converter to see the California time for any date.
9:00 AM GMT is 2:00 AM PDT for most of the year (238 days in 2026). 9:00 AM GMT is 1:00 AM PST for about 18 weeks in 2026.
12:00 PM GMT is 5:00 AM PDT for most of the year (238 days in 2026). 12:00 PM GMT is 4:00 AM PST for about 18 weeks in 2026.
10:00 AM GMT is 3:00 AM PDT for most of the year (238 days in 2026). 10:00 AM GMT is 2:00 AM PST for about 18 weeks in 2026.
5:00 PM GMT is 10:00 AM PDT for most of the year (238 days in 2026). 5:00 PM GMT is 9:00 AM PST for about 18 weeks in 2026.
No, PST is behind GMT. PDT is 7 hours behind GMT for most of the year (238 days in 2026). The gap is 8 hours for about 18 weeks in 2026.
Working days of 9 AM to 5 PM overlap from 4:00 PM to 5:00 PM GMT, which is 9:00 AM to 10:00 AM PDT while GMT and PDT apply.
Pacific Time changes its clocks twice a year; Greenwich Mean Time does not. The next change is on Sunday, November 1, 2026 in Pacific Time.
The UK uses GMT only in winter and British Summer Time (BST, UTC+1) in summer. For London time, use the UK time pages.
PST is often used loosely for Pacific Time all year. In summer the correct abbreviation is PDT; the converter uses whichever applies on your date.