Time Zone Converter

Convert times between time zones.

Source time

Converted times

UTC
ISO 8601

Pick a date and time to convert.

Free online time zone converter

This time zone converter turns a date and time in one place into the exact same moment in any other city — perfect for scheduling international calls, catching a live stream, planning travel, or coordinating a launch across teams. Pick a date and time, choose the zone it belongs to, and see it instantly in as many destination zones as you like. Because it reads your browser's IANA time zone database, daylight saving time is applied correctly for the specific date you enter.

How to convert between time zones

  1. Set the Date & time — it defaults to now, or click Set to now.
  2. Choose the From time zone that the time belongs to.
  3. Read each converted time under Converted times, updated live.
  4. Use Add time zone to compare more cities, then Copy results.

One instant, many clocks

A moment in time is absolute — it only looks different depending on where you stand. The UTC / ISO 8601 line shows that single underlying instant, while every destination row displays it on that city's clock. When two zones are on different sides of midnight, the date shown changes too, which is why the weekday is included in each result.

Related date and time tools

Need the raw epoch value behind a moment? The Unix timestamp converter turns dates into epoch seconds and back. To measure the gap between two clock times rather than convert a zone, try the time duration calculator. Everything runs entirely in your browser — nothing is ever uploaded.

Frequently asked questions

How does the time zone converter handle daylight saving time?

It uses your browser's built-in IANA time zone database, so daylight saving time is applied automatically for the exact date you choose. Because DST rules change through the year, converting the same wall-clock time in summer and winter can give different results — the tool always uses the offset that was in effect on that specific date.

Which time zone does the "From" field default to?

It defaults to your device's current time zone when that zone is in the list, otherwise it falls back to UTC. You can change it to any zone at any time, and the converted times update instantly.

Can I compare more than one destination zone at once?

Yes. Use "Add time zone" to add extra destination rows and see the same moment across several cities side by side — handy for scheduling meetings across continents. Each row can be removed independently.

What does the UTC / ISO 8601 line show?

It shows the single, absolute instant that your source date and time refer to, written in Coordinated Universal Time and as a standard ISO 8601 string. Every destination time is just that one instant displayed in a different zone.

Is my data sent to a server?

No. All the conversion happens in your browser with JavaScript using the built-in Intl date library. Nothing you type is uploaded, stored, or logged.