What is a Time Zone Converter?
Pick a date and time in one zone and see the same moment in as many others as you like, with the UTC offset for each.
Offsets come from your browser’s own time zone database at the moment you selected, rather than from a hardcoded table.
That distinction matters more than it sounds. Daylight saving moves on different dates in different countries, so a meeting that is four and a half hours apart in January can be five and a half in July. A converter with fixed offsets is wrong for several weeks a year, usually the weeks when somebody misses a call.
Frequently asked questions
Does this handle daylight saving?
Yes. Offsets are computed for the exact moment you picked using your browser’s time zone data, so a date in summer and a date in winter give different answers where they should.
Why is India half an hour off everything?
India uses a single offset of five and a half hours from UTC for the whole country, and does not observe daylight saving. Several other zones also use thirty or forty five minute offsets, which is why scheduling maths by whole hours fails.
Which zone should I use for a meeting invite?
Send the invite from a calendar rather than as text. A calendar stores the moment and renders it in each attendee’s own zone, which removes the conversion entirely.
Is anything sent to a server?
No. The conversion uses your browser’s built in internationalisation support.