Set a time, pick your zones, see the world.
Add as many cities as you need. Each one shows the converted local time, UTC offset, and whether it's day or night — all calculated locally in your browser.
Set the moment you want to convert, in the source time zone.
Pick from 400+ time zones. Click the × on any card to remove it.
Four steps, a world of times.
No manual required — here's the entire flow.
Pick a date & time
Enter the moment you want to convert, then choose the source time zone it's in.
Add your zones
Use the dropdown or the quick presets to add as many cities as you need. Each appears as a card.
Read the converted times
Every card shows the local time, UTC offset, and a day/night indicator for that city.
Copy and share
Copy the whole comparison to your clipboard or download it as a text file for reference.
Built for planning, not guessing.
The details that make comparing times across the world faster and less error-prone.
Runs on your device
All conversions use your browser's built-in IANA time zone database. Nothing you enter ever leaves your device.
DST-aware conversions
The converter applies daylight saving time rules for the selected date, so you see the correct local time year-round.
Day / night indicator
Each city card shows whether it's currently day or night there, making it easy to avoid calling at 3 AM.
Questions people actually ask.
The short answers — with the long ones one tap away.
What is a time zone converter?+
A time zone converter is a tool that translates a date and time from one time zone to another. It accounts for UTC offsets and daylight saving time so you can see exactly what time it is in another city when it's a specific time in yours.
How do I use this time zone converter?+
Enter a date and time, choose the source time zone, and add the cities or time zones you want to compare. The tool instantly shows the converted time in every selected zone, along with a day/night indicator.
Is my data uploaded to a server?+
No. All conversions happen locally in your browser using JavaScript and your device's built-in time zone database. Nothing you enter ever leaves your device.
Does it handle daylight saving time?+
Yes. The converter uses the IANA time zone database through your browser's Intl API, so it automatically applies daylight saving time rules for the selected date.
How many time zones can I compare at once?+
You can add as many cities or time zones as you like. Each one appears in its own card with the converted time, UTC offset, and a day/night indicator.
Can I plan a meeting across multiple time zones?+
Yes. Enter the meeting time in your own zone and add all the attendees' cities. The tool shows the local time for each city so you can find a slot that works for everyone.
Is this time zone converter free?+
Yes, it's completely free with no account, no sign-up, and no limit on how many conversions you run.