Timezone converter
Conversion uses IANA time zones in this tab. Nothing is uploaded.
Converted time
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How to use this tool
Convert a clock time between IANA zones, including daylight saving.
Open Timezone converter
From is your guessed local zone; to starts at UTC.
Pick zones and a time
Set from, to, and the datetime. Use Now if you want the current instant.
Read the converted time
The result and ISO string update at once. Copy when you need to paste it elsewhere.
FAQ
How do I convert a time zone?
Pick the source zone, the destination zone, and a date-time. The result is the same instant shown on the other clock.
Does daylight saving apply?
Yes. Conversion uses IANA zones, so New York switches between EST and EDT automatically.
Is the time uploaded?
No. Intl.DateTimeFormat runs in this tab. Closing it discards the conversion.
What is the UTC line?
It is the same instant as ISO-8601 in UTC, useful for APIs, logs, and calendars.
Which zones are listed?
Common cities first, then every IANA zone the browser knows, including UTC.