Date & Time tool
World Clock
Monitor the current time in several cities and time zones at once.
How to use World Clock
A world clock shows the current time in multiple cities or time zones at once. It helps compare local times without manually calculating time differences.
Basic idea
Current UTC time + selected time zone offset = Local time
Why do some cities change offset during the year?
Some countries use daylight saving time, which shifts local clocks during certain months.