Daylight saving time
68 countries and territories move their clocks for part of the year. 179 never do.
Last updated
Daylight saving time (DST), called summer time in Europe, moves clocks one hour forward in spring so evenings stay light longer, then back again in autumn. The northern and southern hemispheres switch in opposite months, so the gap between, say, London and Sydney changes twice a year.
Next changes
| Where | Rule | Next change |
|---|---|---|
| United States and Canada (most areas) | Second Sunday in March to first Sunday in November, at 2:00 local time | 14 March 2027 |
| European Union and United Kingdom | Last Sunday in March to last Sunday in October, at 01:00 UTC | 28 March 2027 |
| Australia (NSW, Victoria, ACT, Tasmania, SA) | First Sunday in October to first Sunday in April | 4 April 2027 |
| New Zealand | Last Sunday in September to first Sunday in April | 4 April 2027 |
Who never changes
Most of Asia, Africa and South America keeps one time all year, including Brazil, China, India, Indonesia, Japan, Nigeria, Pakistan and Russia. Inside countries that do change, some regions opt out: most of Arizona stays on Mountain Standard Time, and Hawaii never changes.
Spring forward, fall back
- Spring: the clock skips an hour (in the US, from 1:59 straight to 3:00), so that night is an hour shorter and some local times do not exist.
- Autumn: the clock repeats an hour, so a time like 1:30 happens twice. Schedule meetings with the city named, not just the hour.
Every clock on World Time Map, the converter and each country page applies these rules for the exact date you look at.
Questions
- When do the clocks change next?
- In the United States and Canada, next on 14 March 2027. In the UK and EU, next on 28 March 2027.
- How many countries use daylight saving time?
- 68 of the 247 countries and territories in the tz database change their clocks somewhere this year. 179 keep one time all year.
- Does India have daylight saving time?
- No. India stays on Indian Standard Time, UTC+05:30, all year.