Time zones without the arithmetic
Add the cities you actually deal with and see them all at once. Each card shows the current local time there, the region and its UTC offset, and a sun or moon based on the real hour in that zone — so you can tell at a glance whether it is a reasonable time to call.
The part most tools get wrong
Showing only the hour is misleading near midnight. If it is 11pm Tuesday where you are and 8am somewhere else, the useful fact is not "8am" — it is that it is already Wednesday there. Every card states whether the date is today, tomorrow or yesterday relative to yours. That single line is what prevents meetings booked on the wrong day.
Daylight saving, handled
Times come from the IANA time zone database built into your browser, which knows every zone's daylight saving rules and the dates they change. You never adjust anything by hand, and a city that moved its clocks last night shows the right time this morning. The offset on each card updates with it.
Arranged how you want
- Add any zone — start typing a city and pick from the suggestions.
- Drag to reorder — put the zones you check most at the front.
- Saved automatically — your list and its order are kept in your browser for next time.
- Day and night tinting — cards shift appearance based on the local hour there.
Everything is calculated on your own device; no list of cities is ever sent anywhere. For a single large clock showing just your own time, use the clock.