How to compare time zones
- Pick a date and time in the first zone (it starts with your own). The same moment appears in every other zone.
- Add cities or zones with the search box. You can type a city, a region, or an abbreviation such as
PST. - Look at the meeting planner to find hours that work for everyone, then click a column to pick it, or press Copy link to share.
To change which zone you type the time in, press the arrow button on any card. The moment stays the same, only the zone the date and time fields describe changes. Any of the 400 or so time zones in the standard IANA database can be added, up to 12 at once.
Questions
Is my time or location sent anywhere?
No. The tool reads your time zone from your browser and does all the maths there. Nothing is uploaded, and the "Copy link" button only builds a link on your device. Whoever opens it sees the time and zones you chose.
Does it handle daylight saving time?
Yes. Offsets come from the time zone data built into your browser, so each zone uses its own rules for the date you pick. If you choose a time that does not exist (clocks skipping ahead) or happens twice (clocks going back), the tool tells you.
How do I convert EST to PST, or IST to GMT?
Type the first zone in the list, for example "EST" or "India", and add the second. Enter the time in the first zone and read the other one. Zones are shown by city, such as New York or Los Angeles, because "EST" or "CST" can mean different places and shift with daylight saving.
How do I share a comparison with my team?
Press "Copy link". The link stores the date, time, and zones in the address, so anyone who opens it sees the same comparison. Colleagues see times as set in the first zone in the list, which is where you type the time.
What do the colours in the meeting planner mean?
Dark green columns are working hours (9:00 to 18:00 local time), light green are early morning or evening (7:00 to 9:00 and 18:00 to 22:00), and grey are night. The text under the planner lists the hours when every zone is in working hours.
Credits
Built by OneTooling using standard browser features. No third-party code runs on your data.