Plan the call, not the maths
Pick a city and drag. You can move up to 24 hours either way in 15-minute steps, and every other city follows. Colors show who is at their desk and who is asleep.
Click the ⌂ on any city to make it your new home, and every difference updates instantly.
Search 34,000+ cities, states and countries
Add a city, a whole state or province, or a country. Search ignores accents, so “sao paulo” finds São Paulo and “zurich” finds Zürich.
Or add any time zone abbreviation
Type EST, CET or AEDT, or rarer ones like CHADT and AZOST. Abbreviations follow daylight saving on their own, so EST becomes EDT and AEST becomes AEDT without you touching anything.
Small, fast and private
Home city first
Every other city shows how far ahead or behind it is, like +6h or −3h 30m.
12 or 24-hour clock
Switch in one click. Light and dark mode follow your system.
Settings that follow you
Your list syncs across your Chrome browsers through your Google account.
No account, no data
Time Zone Buddy collects nothing and works offline. Its only permission is storage, used to save your settings.
Put every time zone in your toolbar
Free for Chrome and Edge. Pin it and you are done.