- Clocks should skip one hour forward when daylight saving time starts (except at Troll research station, where the time zone offset is changed from UTC to UTC +2).
- GMT is not observed in London and the United Kingdom when daylight saving time is observed.
- Summer time starts at the same time in all of Europe (except Moldova), but at different local times, depending on the time zone.
- Contrary to other locations that observe daylight saving time, Ireland has daylight saving time in the winter, and standard time in the summer. Winter time is still one hour behind summer time.
- Turkey and Iceland do not change between standard time and daylight saving time.
See our page about
daylight saving time changes in 2023 or check specific location pages for more info.