Convert Coordinated Universal Time (UTC) to UK time (GMT/BST), 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 |
|---|
UTC 9 to 5 GMT 9 to 5
GMT is the same time as UTC.
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 meridian (UTC) | London (GMT) | Working hours |
|---|---|---|
| 12:00 AM | 12:00 AM | |
| 1:00 AM | 1:00 AM | |
| 2:00 AM | 2:00 AM | |
| 3:00 AM | 3:00 AM | |
| 4:00 AM | 4:00 AM | |
| 5:00 AM | 5:00 AM | |
| 6:00 AM | 6:00 AM | |
| 7:00 AM | 7:00 AM | |
| 8:00 AM | 8:00 AM | |
| 9:00 AM | 9:00 AM | Both working |
| 10:00 AM | 10:00 AM | Both working |
| 11:00 AM | 11:00 AM | Both working |
| 12:00 PM | 12:00 PM | Both working |
| 1:00 PM | 1:00 PM | Both working |
| 2:00 PM | 2:00 PM | Both working |
| 3:00 PM | 3:00 PM | Both working |
| 4:00 PM | 4:00 PM | Both working |
| 5:00 PM | 5:00 PM | |
| 6:00 PM | 6:00 PM | |
| 7:00 PM | 7:00 PM | |
| 8:00 PM | 8:00 PM | |
| 9:00 PM | 9:00 PM | |
| 10:00 PM | 10:00 PM | |
| 11:00 PM | 11:00 PM |
Every hour of the Coordinated Universal Time day, plus the common half hours, and their UK time equivalents. The second column covers the part of the year when the clocks are on a different gap.
| Coordinated Universal Time | BST 1 h ahead, most of the year (210 days in 2026) | GMT 0 h ahead, about 22 weeks in 2026 |
|---|---|---|
| 12:00 AM | 1:00 AM | 12:00 AM |
| 1:00 AM | 2:00 AM | 1:00 AM |
| 2:00 AM | 3:00 AM | 2:00 AM |
| 3:00 AM | 4:00 AM | 3:00 AM |
| 4:00 AM | 5:00 AM | 4:00 AM |
| 5:00 AM | 6:00 AM | 5:00 AM |
| 6:00 AM | 7:00 AM | 6:00 AM |
| 7:00 AM | 8:00 AM | 7:00 AM |
| 8:00 AM | 9:00 AM | 8:00 AM |
| 9:00 AM | 10:00 AM | 9:00 AM |
| 9:30 AM | 10:30 AM | 9:30 AM |
| 10:00 AM | 11:00 AM | 10:00 AM |
| 10:30 AM | 11:30 AM | 10:30 AM |
| 11:00 AM | 12:00 PM | 11:00 AM |
| 11:30 AM | 12:30 PM | 11:30 AM |
| 12:00 PM | 1:00 PM | 12:00 PM |
| 12:30 PM | 1:30 PM | 12:30 PM |
| 1:00 PM | 2:00 PM | 1:00 PM |
| 1:30 PM | 2:30 PM | 1:30 PM |
| 2:00 PM | 3:00 PM | 2:00 PM |
| 2:30 PM | 3:30 PM | 2:30 PM |
| 3:00 PM | 4:00 PM | 3:00 PM |
| 3:30 PM | 4:30 PM | 3:30 PM |
| 4:00 PM | 5:00 PM | 4:00 PM |
| 4:30 PM | 5:30 PM | 4:30 PM |
| 5:00 PM | 6:00 PM | 5:00 PM |
| 5:30 PM | 6:30 PM | 5:30 PM |
| 6:00 PM | 7:00 PM | 6:00 PM |
| 7:00 PM | 8:00 PM | 7:00 PM |
| 8:00 PM | 9:00 PM | 8:00 PM |
| 9:00 PM | 10:00 PM | 9:00 PM |
| 10:00 PM | 11:00 PM | 10:00 PM |
| 11:00 PM | 12:00 AM (next day) | 11:00 PM |
Each row is a stretch of days with one constant difference, split at every clock change.
| Dates | UTC | UK time | Difference |
|---|---|---|---|
| Thu, Jan 1, 2026 until Sun, Mar 29, 2026 | UTC | GMT | Same time |
| Sun, Mar 29, 2026 until Sun, Oct 25, 2026 | UTC | BST | BST 1 h ahead |
| Sun, Oct 25, 2026 until Sun, Mar 28, 2027 | UTC | GMT | Same time |
| Sun, Mar 28, 2027 until Sun, Oct 31, 2027 | UTC | BST | BST 1 h ahead |
| Sun, Oct 31, 2027 until Sat, Jan 1, 2028 | UTC | GMT | Same time |
Coordinated Universal Time is the reference every time zone is measured from. It never changes for daylight saving time. Servers, aviation, logs and APIs use it because it is unambiguous.
UK time is Greenwich Mean Time (GMT, UTC+0) in winter and British Summer Time (BST, UTC+1) from the last Sunday in March to the last Sunday in October.
BST is 1 hour ahead of UTC for most of the year (210 days in 2026). The gap is 0 hours for about 22 weeks in 2026.
London uses UK time. BST is 1 hour ahead of UTC for most of the year (210 days in 2026). The gap is 0 hours for about 22 weeks in 2026. Type any UTC time into the UTC to UK time converter to see the London time for any date.
9:00 AM UTC is 10:00 AM BST for most of the year (210 days in 2026). 9:00 AM UTC is 9:00 AM GMT for about 22 weeks in 2026.
12:00 PM UTC is 1:00 PM BST for most of the year (210 days in 2026). 12:00 PM UTC is 12:00 PM GMT for about 22 weeks in 2026.
10:00 AM UTC is 11:00 AM BST for most of the year (210 days in 2026). 10:00 AM UTC is 10:00 AM GMT for about 22 weeks in 2026.
5:00 PM UTC is 6:00 PM BST for most of the year (210 days in 2026). 5:00 PM UTC is 5:00 PM GMT for about 22 weeks in 2026.
Yes. BST is 1 hour ahead of UTC for most of the year (210 days in 2026). The gap is 0 hours for about 22 weeks in 2026.
Working days of 9 AM to 5 PM overlap from 9:00 AM to 4:00 PM UTC, which is 10:00 AM to 5:00 PM BST while UTC and BST apply.
UK time changes its clocks twice a year; Coordinated Universal Time does not. The next change is on Sunday, March 28, 2027 in UK time.