Free Time Zone Converter

Scheduling across continents means wrestling with time zones and daylight saving. This free time zone converter translates any date and time between 24 major world zones using your browser’s built-in DST database — with UTC offsets, the hour difference, and the same moment shown worldwide.

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Same moment around the world

Time zoneLocal timeUTC offset
Private by design. This tool runs 100% in your browser — nothing is uploaded to any server.

How to Use the Time Zone Converter

  1. Pick a date and time, or hit “Use current time”.
  2. Choose the from and to time zones — ⇄ swaps them.
  3. Read the converted time with UTC offsets and the hour difference.
  4. Scan the world table to see the same moment in nine major cities.

Features

24 major time zones, automatic daylight-saving handling via the Intl API, UTC offset display, ahead/behind difference calculation, a world table of the same moment, and one-click current time.

Benefits & Use Cases

Remote teams scheduling meetings, travelers planning calls home, and freelancers coordinating with clients all get unambiguous times. Your local zone is detected automatically as the starting point.

Tips

Daylight saving shifts offsets part of the year — converting a specific date (not just “now”) is what keeps it accurate. When in doubt, share the UTC time: it never has DST.

Frequently Asked Questions

How do I convert 3 PM New York time to London?

Pick the date and time, set From to New York and To to London. 3 PM EDT in summer is 8 PM BST — a 5-hour difference.

Does it handle daylight saving time?

Yes. Conversions use the IANA time zone database in your browser, so DST transitions are applied for the exact date you enter.

What is the time difference shown?

The offset between the two zones at that moment, e.g. “8h ahead” — computed from each zone’s real UTC offset on that date.

Which time zones are included?

24 major zones covering the Americas, Europe, Africa, Asia and Oceania, from Honolulu to Auckland.

Why did the offset change for the same cities?

One or both zones entered or left daylight saving between your two dates. Always convert the specific date, not a generic time.

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