Time Zone Converter

Automatically. The converter reads each zone's UTC offset at the exact instant you enter using your browser's built-in IANA time-zone data, so a summer date uses the daylight-saving offset and a winter date uses standard time. You never pick DST on or off yourself.

Because time zones can be many hours apart, a time late at night in one zone can be the next morning — or the previous evening — in another. When the calendar day shifts, the result shows a "+1 day" or "−1 day" note next to the converted time.

No. Everything runs in your browser using its built-in time-zone database. The date, time, and zones you choose stay on this page and are never uploaded to a server.

Not every zone is a whole number of hours from UTC. India is UTC+05:30 and parts of Australia and Nepal use other half- or quarter-hour offsets. The converter handles these fractional offsets exactly, so the minutes line up correctly.