World Clock - Live Time in Major Cities
See the current local time across major cities at a glance. Clocks update every second using your browser - no server calls, no lag.
Add or remove cities from 50+ time zones, include your local city with one click, and check business-hour status with color indicators.
Frequently Asked Questions
How accurate is the world clock?
The clock synchronizes with your device's system time, which should be set via NTP (Network Time Protocol). Accuracy depends on your device clock. For critical timing, verify against an authoritative time source.
Does it account for daylight saving time?
Yes. Each city displays the current local time using active time zone rules, including DST transitions. Times update automatically when DST begins or ends.
Can I add custom cities?
Search for cities by name to add them to your clock panel. The tool uses IANA time zone databases covering cities worldwide.
What is UTC?
UTC (Coordinated Universal Time) is the global time standard. It does not change with seasons (no DST). All time zones are expressed as offsets from UTC - for example, New York is UTC-5 (EST) or UTC-4 (EDT).
How is this different from the meeting planner?
The world clock shows the current time in multiple cities simultaneously. The meeting planner helps you find a future meeting time that works across time zones by comparing business hours on a timeline.