Method
How it works
Clear rules and clear limits — time, daylight saving and holidays.
Where does the time come from?
Each clock is computed in your browser from the city's IANA time-zone id, falling back to a baked offset if the browser cannot resolve it.
What about daylight saving?
Clocks shift forward in spring and back in autumn — the converter applies the rule for the date you choose.
What is a UTC offset?
How far a zone is ahead of or behind UTC — Dhaka is UTC+06:00, for example.
Are holiday dates guaranteed?
Confirm major holidays with official sources — lunar-based holidays can move.