Convert times between any IANA timezones. Auto-detects your local timezone. Includes a world clock mode showing current time in up to 8 cities at once. Searchable timezone selector with UTC offset display.
World Clock
UTC UTC+0
09:00:12 PM
Wed, Mar 18, 2026
UTC UTC+0
09:00:12 PM
Wed, Mar 18, 2026
Convert between Unix timestamps and human-readable dates.
Add/subtract dates or find the difference between two dates.
Countdown timer with alerts and a stopwatch with lap times.
Convert between metric and imperial length units.
Format, beautify, minify, and validate JSON with syntax highlighting.
Select the source timezone (auto-detected to your local zone), enter the time, and choose a target timezone from the searchable dropdown. The converted time appears instantly. If the conversion crosses midnight, the date is shown.
The world clock lets you add up to 8 timezone cards that show the current live time in each zone. Each card displays the timezone name, UTC offset, current time, and current date. Click the X button to remove a card.
The tool uses all IANA timezones supported by your browser — typically 400+ zones covering every region in the world. The searchable dropdown filters as you type.
Yes. The converter uses the Intl API which is aware of DST rules for all IANA timezones. UTC offsets adjust automatically based on the selected date.
Yes, completely free. All conversions happen in your browser using the Intl API — no server calls, no data collection, no signup required.