World Clock & Timezone Comparator
Free ToolCompare international timezones across London, New York, San Francisco, Tokyo, Sydney, Paris, Dubai, and Mumbai with interactive time scrubbing.
Instant 0ms
100% Client-Side
Global Timezone Comparator & Meeting Planner
Drag the interactive 24-hour scrubber below to compare time and identify common business hour overlaps across global cities.
Selected Reference Time:
00:00 (Midnight)
06:00 (Morning)
12:00 (Noon)
18:00 (Evening)
23:45
Status Legend:
Working Hours (9am - 5pm)
Early / Evening Hours (7-9am, 5-8pm)
Night / Sleep Hours
Day' : ' Night'">
12am
9am (Work)
5pm
12am
Frequently Asked Questions
Drag the interactive time scrubber. Watch the business overlap badges (green for 9 AM - 5 PM) to easily spot hours when multiple offices are in active working hours.
Yes. It uses standard IANA timezone databases via your browser Intl API, automatically accounting for Daylight Saving transitions.
Yes! Click the "Sync to Current Time" button at any time to return to live seconds counting.