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UK to UTC time converter
UTC is 1 hours behind London for 210 days of 2026, and 0 hours behind for the other 155 days, because daylight saving changes the gap.
UK to UTC conversion table
Local time in London and the matching time in UTC on two reference dates, one in winter and one in summer for the northern hemisphere.
| London (UK) | UTC on 15 January | UTC on 15 July |
|---|---|---|
| 08:00 | 08:00 | 07:00 |
| 09:00 | 09:00 | 08:00 |
| 10:00 | 10:00 | 09:00 |
| 12:00 | 12:00 | 11:00 |
| 15:00 | 15:00 | 14:00 |
| 17:00 | 17:00 | 16:00 |
| 18:00 | 18:00 | 17:00 |
| 21:00 | 21:00 | 20:00 |
Best meeting times between London and UTC
- January: Inside both working days (09:00-17:00): 09:00-17:00 UK = 09:00-17:00 UTC.
- July: Inside both working days (09:00-17:00): 10:00-17:00 UK = 09:00-16:00 UTC.
Want to add more people? The meeting planner starts with these two zones and lets you add up to four more.
Daylight saving between UK and UTC
- London moves its clocks forward on 29 March and back on 25 October in 2026.
- UTC does not change its clocks in 2026.
- The gap is 1 hours for 210 days and 0 hours for 155 days of 2026.
About the two zones
London. The UK is on GMT (UTC+0) in winter and British Summer Time (UTC+1) from the last Sunday of March to the last Sunday of October.
UTC. UTC is the reference all other zones are measured from. It never changes for daylight saving, which is why servers, logs and schedules are best kept in UTC.
Frequently asked questions
What time is 9 AM UK in UTC?
On 15 January, 09:00 in London is 09:00 in UTC. On 15 July it is 08:00.
What is the time difference between London and UTC?
UTC is 1 hours behind London for 210 days of 2026, and 0 hours behind for the other 155 days, because daylight saving changes the gap.
Does the time difference between UK and UTC change during the year?
Yes. London changes its clocks and UTC does not, so the gap moves between 1 and 0 hours. Always convert with the actual date.
When is the best time for a meeting between London and UTC?
Inside both working days (09:00-17:00): 09:00-17:00 UK = 09:00-17:00 UTC. In July: Inside both working days (09:00-17:00): 10:00-17:00 UK = 09:00-16:00 UTC.
More conversions
Need the time in a scheduler? Convert a local-time cron schedule to UTC, or see which jobs a clock change affects with the DST collision simulator.