buncha/time & productivity/tz-convert

Time Zone Converter

Pick the city you’re anchoring around, slide to the meeting time, then add any other cities to see the same moment everywhere at once. Working-hours bands highlight when the time lands in a sane 9-to-6 window.
Anchor city · UK
London
10:16pm
Tue · UTC+0:59

Add cities to compare

Los Angeles
USA
Denver
USA
Chicago
USA
New York
USA
Toronto
Canada
São Paulo
Brazil
London
UK
Paris
France
Berlin
Germany
Istanbul
Türkiye
Moscow
Russia
Dubai
UAE
Mumbai
India
Bangkok
Thailand
Singapore
Singapore
Hong Kong
Hong Kong
Shanghai
China
Tokyo
Japan
Seoul
South Korea
Perth
Australia
Sydney
Australia
Auckland
New Zealand
Honolulu
USA
UTC
Coordinated Time

Comparison board

USA
New YorkUTC−4:01
5:16pm
Tue9-to-6
UK
LondonUTC+0:59
10:16pm
TueAfter hours
Australia
SydneyUTC+9:59
7:16am
Wed · Next dayAfter hours
Times are computed in your browser using the Intl API — no server-side lookups, no analytics on the zones you pick.

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About Time Zone Converter

Compare the same moment across cities worldwide on a working-hours board. Live mode tracks real time; picked mode lets you drag a meeting time and see where it lands for everyone. Handles daylight-saving transitions automatically.

Everything happens on your device. Close the tab and it's gone.
b
Built browser-first. Run by one developer.
Every tool runs on your device. No tracking pixels, no sign-up to start. The numbers below are pulled live from the registry.
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