World Clock
Track current time across multiple cities and time zones, with UTC offsets and day differences at a glance.
Works offlineTime
About the world clock
Add any of 100+ major cities and watch their local times side by side, each with its UTC offset and a marker when it is a different calendar day from yours. A meeting planner strip shows the next 24 hours across every city you have added, shading the hours that fall inside normal working time so you can spot an overlap quickly. Your city list is saved locally.
This tool runs entirely in your browser. Nothing you type is uploaded, and it keeps working with no connection at all — including as an installed app.