Convert ART to London
Convert a time in ART to London, with daylight-saving changes applied for the date you choose.
ART to London
Time in ART, South America
Time in London, United Kingdom
- ART now
- —
- London now
- —
Time zone details
ART, South America
- IANA zone
- Etc/GMT+3
- Standard offset
- UTC-03:00
- 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 ART.
Related time zones conversions
Frequently asked questions
What is the time difference between ART and London?+
ART is UTC-03:00 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 ART observe daylight saving time?+
No. ART stays on UTC-03:00 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.