Time Zone Converter
Compare cities side by side and find an hour that works for everyone.
How to schedule across time zones
The hard part isn't the arithmetic. It's finding an hour nobody resents.
- 1
Add everyone’s city
Search by city name. Boston, Munich and Bangalore all resolve to the right zone even though none of them is a time zone name.
- 2
Read the coloured bar
It rates the next 48 hours across every city at once. Green means the hour is inside working hours for all of them. No mental arithmetic required.
- 3
Drag to a green stretch
Every row updates as you drag, including the date, so you can see when a meeting lands on tomorrow for one side of the call.
- 4
Send it
Copy times pastes a clean table into an email. Copy link sends the exact view. Both beat a screenshot: they stay readable, and they are searchable later.
Accurate dates, no ads, nothing sent anywhere.
Conversions come from the IANA time zone database that ships inside your browser, so daylight saving is applied for the specific date you pick rather than today's rules, including the awkward zones on 30 and 45 minute offsets. Nothing is calculated on a server, which is why the page keeps working with your connection turned off.
- Correct daylight saving handling for past and future dates
- Half-hour and quarter-hour zones such as India and Nepal
- No ads, no trackers, no analytics, no account
- Your city list is stored in your own browser, never on a server
Time zone converter FAQs
How do I convert a time between two time zones?
Add both locations, then set the date and time on either row. Every other row updates instantly to show the same moment in its own zone, including the correct day, which is easy to get wrong across the international date line.
Does this handle daylight saving time?
Yes. Conversions use your browser's built-in IANA time zone database, so daylight saving transitions are applied automatically for the exact date you choose, not just for today. Pick a date on the other side of a DST change and the offset adjusts.
How do I find a meeting time that works for everyone?
The coloured bar under the locations shows the whole 48-hour window rated across every location you have added. Green means the hour falls inside working hours everywhere, amber means it is early or late for someone, and red means somebody would be asleep. Drag the handle to a green stretch.
Can I share a converted time with someone else?
Two ways. "Copy times" puts a formatted list on your clipboard that you can paste straight into an email. It pastes as a neat table in most mail clients, and unlike a screenshot it stays readable and searchable. "Copy link" copies a URL containing your locations and the chosen moment, so whoever opens it sees exactly the same view.
Are there ads or tracking on this page?
No. There are no ads, no trackers and no analytics. The tool runs entirely in your browser, so nothing about your locations or chosen times is sent anywhere. Your chosen cities are remembered locally in your own browser so they are there next time.
Which cities can I search for?
Several hundred major cities are matched by name, including ones that are not their own time zone. Searching "Boston" correctly resolves to America/New_York. If a place is not in the list, you can search for any IANA time zone identifier directly, such as "Pacific/Chatham".