Time Zone Converter
Free, no account, works offline.
Pick a time in one city and read it in every other city you care about, with the offset, whether daylight saving is in force, and a warning when the time you picked is one the clocks skipped.
What it does
- Up to eight cities side by side, with the date in each.
- Current offset and whether daylight saving is currently in force.
- A warning when clocks change in the next three weeks.
- Reads your browser's time zone database, so the rules are always current.
The part most calculators get wrong
The hours that do not exist and the hours that happen twice. When clocks spring forward, 02:30 is skipped entirely; when they go back, 01:30 occurs twice an hour apart. Most converters quietly return one answer. This one says which case you are in.
Common questions
Does it stay up to date when a country changes its rules?
It reads the time zone database built into your browser, which is updated with the browser itself. There is no list here to go stale.
Why does the difference between two cities change during the year?
Because they start and end daylight saving on different dates, and some do not observe it at all. London and New York are five hours apart for most of the year and four for about two weeks of it.
What about half-hour and 45-minute offsets?
Handled. India is +5:30, Nepal is +5:45, and parts of Australia are +8:45 — all shown exactly rather than rounded to the hour.