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Toolzum

World Clock

See live times across world time zones with DST handling — schedule global meetings right. Know Tokyo time before calling — free, local, no signup.

100% Local Browser Native

How to Use the World Clock

1. Add cities

Regular contacts' time zones.

2. Read live times

DST-aware clocks update per second.

3. Convert meeting times

Share all-zones list with invitees.

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Frequently Asked Questions

Is DST handled?

Yes — zones observe their current daylight rules automatically. Meeting planners avoid the twice-yearly off-by-one-hour disasters.

How many zones?

Dozens of major cities plus custom UTC offsets. Add regular contacts' cities for one-glance scheduling.

Schedule across zones?

Pick a time in one zone to see all others instantly — 9am New York reads 6:30pm Mumbai. Share the converted list, not one zone.

Do clock reads upload?

No — times compute locally in your browser from system clock data. Nothing leaves your device.

Last updated October 2026