When the clocks change in your zone
Choose a time zone from the list of common zones, or the one your device is set to, then choose a year. The page shows the date and local time at which clocks go forward and the date and time at which they go back, along with the size of the shift.
The dates are computed from the time zone database inside your browser, not typed in by hand. That is why the page can answer for future years, and why it follows whatever rules your browser currently holds. If a zone does not change its clocks, the page says there is no daylight saving there.
Patterns differ by region. In New York the clocks go forward on the second Sunday of March and back on the first Sunday of November. In London and Berlin the change happens on the last Sunday of March and of October. Sydney, in the southern hemisphere, moves its clocks back in April and forward in October. Nairobi and Mumbai do not change at all.
Rules are set by governments and they do change. A country can end, start or move its daylight saving dates at short notice, and browsers then need an update. If a result looks wrong for a recent change, check your browser version and an official source.
Worked examples
Clock changes 2026 to 2030
Dates are the local day the clocks change. Forward is the spring change to daylight time, back is the autumn change. Sydney is in the southern hemisphere, so its forward change falls in October and its back change in April.
| Year | United States (New York) | European Union (Paris) | Australia (Sydney) |
|---|---|---|---|
| 2026 | Forward Sun 8 Mar; back Sun 1 Nov | Forward Sun 29 Mar; back Sun 25 Oct | Forward Sun 4 Oct; back Sun 5 Apr |
| 2027 | Forward Sun 14 Mar; back Sun 7 Nov | Forward Sun 28 Mar; back Sun 31 Oct | Forward Sun 3 Oct; back Sun 4 Apr |
| 2028 | Forward Sun 12 Mar; back Sun 5 Nov | Forward Sun 26 Mar; back Sun 29 Oct | Forward Sun 1 Oct; back Sun 2 Apr |
| 2029 | Forward Sun 11 Mar; back Sun 4 Nov | Forward Sun 25 Mar; back Sun 28 Oct | Forward Sun 7 Oct; back Sun 1 Apr |
| 2030 | Forward Sun 10 Mar; back Sun 3 Nov | Forward Sun 31 Mar; back Sun 27 Oct | Forward Sun 6 Oct; back Sun 7 Apr |
Worked out from the time zone database used by the build tools, checked 28 October 2026. Governments can change these rules, so confirm anything important with an official source. Not every region follows these dates: Arizona, most of Queensland and Western Australia do not change their clocks.
Questions about this tool
Where does the tool get its dates?
From the time zone database built into your browser. It is not a fixed table on this site.
Why might my result differ from a government notice?
If a rule changed recently and your browser has not updated, it may still use the older rule. Update the browser and check again.
Does the tool work for past and future years?
Yes, for any year the browser can calculate. Far-future years follow today's rule, which may change.
What does it show for a zone with no daylight saving?
It states that the zone keeps one offset all year and lists no change dates.
Related tools
Where this comes from: US Department of Transportation, uniform time and daylight saving time ยท IANA time zone database and the rules behind it