Time/Numbers
Timezone Converter
One moment in time, across several time zones at once. Compare working hours, plan calls, see the day difference.
This tool shows one moment in time across several time zones at once — handy when a team or your clients are spread across countries and you need to quickly find a workable time for a call.
How to use it
- Pick a source time zone and time — every target time zone you've added recalculates instantly.
- Add as many target time zones as you need with the "Add time zone" button.
- If a result falls on a different calendar day, that's flagged separately, so "tomorrow" and "today" don't get mixed up.
Common uses
- Scheduling a meeting or call with participants across several time zones without manually working out the offset.
- Checking what local time an email or notification will land at for a client.
- Understanding when a deadline (e.g. "by 5pm PST") actually falls in your own time zone.
Things to keep in mind
The offset between zones isn't always a whole number of hours — some zones are offset by 30 or 45 minutes (e.g. India, Nepal).
Daylight saving transitions happen on different dates in different countries, so the gap between two zones can shift temporarily during the year.
Article about this tool: Time zones: why UTC isn't the same thing as GMT
Frequently asked questions
Is daylight saving time transition accounted for?
Yes, the converter relies on IANA rules for the selected timezones and automatically accounts for DST — the result will be correct even if the date falls on a transition day.
Why is it better to choose an IANA timezone name rather than a fixed UTC offset?
An offset like UTC+2 doesn't "know" about daylight saving transitions and can become incorrect in a different season. A name like "Europe/Kyiv" always follows the current rules for that region.
What does the (+1 day) or (-1 day) marker next to a time mean?
It shows that in the target timezone it's already the next calendar day, or still the previous one, compared to the source date — this often happens with a large hour difference.
Are all time zones offset by a whole number of hours?
No, some have a fractional offset — for example, India (UTC+5:30), Nepal (UTC+5:45), or parts of Australia (UTC+9:30). That's why this converter relies on IANA timezone names rather than plain integer-hour offsets.
How many time zones can I compare at once?
You can add as many target time zones as you need with the "Add time zone" button — handy for seeing the time for a team spread across several countries at once.