Time Zone Converter

Time Zone Converter
Convert date & time between IANA time zones, with automatic Daylight Saving handling
Converted Result
Compare Zones
ZoneLocal TimeUTC Offset

Frequently Asked Questions

Does this handle Daylight Saving Time?

Yes — conversions use the browser’s built-in Intl time zone database, which automatically accounts for Daylight Saving transitions for every IANA zone on the exact date you select.

What are IANA time zones?

IANA time zones (e.g. “Asia/Kolkata”, “America/New_York”) are the standard identifiers used across operating systems and programming languages to represent a region’s time rules, including historical and future DST changes.

Does this tool need an internet connection?

No — after the page loads, all conversions run locally using your browser’s built-in time zone data, so it keeps working offline.

Why does my local time zone auto-fill?

The “From” zone defaults to your browser’s detected system time zone for convenience — you can change it to any other zone at any time.