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CT to UK time converter
London is 6 hours ahead of US Central for 337 days of 2026, and 5 hours ahead of for the other 28 days, because daylight saving changes the gap.
CT to UK conversion table
Local time in US Central and the matching time in London on two reference dates, one in winter and one in summer for the northern hemisphere.
| US Central (CT) | London on 15 January | London on 15 July |
|---|---|---|
| 08:00 | 14:00 | 14:00 |
| 09:00 | 15:00 | 15:00 |
| 10:00 | 16:00 | 16:00 |
| 12:00 | 18:00 | 18:00 |
| 15:00 | 21:00 | 21:00 |
| 17:00 | 23:00 | 23:00 |
| 18:00 | 00:00 (+1 day) | 00:00 (+1 day) |
| 21:00 | 03:00 (+1 day) | 03:00 (+1 day) |
Best meeting times between US Central and London
- January: Inside both working days (09:00-17:00): 09:00-11:00 CT = 15:00-17:00 UK.
- July: Inside both working days (09:00-17:00): 09:00-11:00 CT = 15:00-17:00 UK.
Want to add more people? The meeting planner starts with these two zones and lets you add up to four more.
Daylight saving between CT and UK
- US Central moves its clocks forward on 8 March and back on 1 November in 2026.
- London moves its clocks forward on 29 March and back on 25 October in 2026.
- The gap is 6 hours for 337 days and 5 hours for 28 days of 2026.
About the two zones
US Central. US Central Time is UTC-6 in winter (CST) and UTC-5 in summer (CDT), changing together with the other US 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.
Frequently asked questions
What time is 9 AM CT in UK?
On 15 January, 09:00 in US Central is 15:00 in London. On 15 July it is 15:00.
What is the time difference between US Central and London?
London is 6 hours ahead of US Central for 337 days of 2026, and 5 hours ahead of for the other 28 days, because daylight saving changes the gap.
Does the time difference between CT and UK change during the year?
Yes. Both zones change their clocks, on different dates, so the gap moves between 6 and 5 hours. Always convert with the actual date.
When is the best time for a meeting between US Central and London?
Inside both working days (09:00-17:00): 09:00-11:00 CT = 15:00-17:00 UK. In July: Inside both working days (09:00-17:00): 09:00-11:00 CT = 15:00-17:00 UK.
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.