Convert CST to London
Convert a time in CST to London, with daylight-saving changes applied for the date you choose.
CST to London
Time in CST, North America
Time in London, United Kingdom
- CST now
- —
- London now
- —
Time zone details
CST, North America
- IANA zone
- Etc/GMT+6
- Standard offset
- UTC-06:00
- Daylight saving
- Not observed
London, United Kingdom
- IANA zone
- Europe/London
- Standard offset
- UTC+00:00
- Daylight offset
- UTC+01:00
- Daylight saving
- Observed
Clocks change in 2026 on 29 March 2026 and 25 October 2026.
Daylight at the solstices
- 21 June
- 04:44 – 21:22 (16h 38m)
- 21 December
- 08:05 – 15:54 (7h 50m)
Sunrise and sunset are calculated for the city centre and are accurate to about a minute. Local elevation and atmospheric conditions shift the observed horizon.
Need the reverse direction? Convert London to CST.
Related time zones conversions
Frequently asked questions
What is the time difference between CST and London?+
CST is UTC-06:00 and London is UTC+00:00 in standard time. The gap between them changes during the year if either place observes daylight saving, so enter a date to see the difference on that day.
Does CST observe daylight saving time?+
No. CST stays on UTC-06:00 all year.
Does London observe daylight saving time?+
Yes. In 2026 the clocks change on 29 March 2026 and 25 October 2026.
Why does one local time sometimes have two answers?+
When clocks go back, the hour before the change repeats, so that local reading happens twice and both instants are valid. When clocks go forward, the skipped hour never occurs, so that reading has no matching instant at all. The converter reports both cases rather than guessing.