World Clock
Track time across multiple cities with live updating world clocks. Add any timezone, see dates, UTC offsets, and time differences at a glance.
How to use World Clock
The world clock displays the current time across dozens of major cities and time zones worldwide, updating every second. It shows local time, UTC offset, date and whether Daylight Saving Time is currently active. Use it to find the current time anywhere in the world without mental offset arithmetic.
- View the live world clock — times update every second.
- Search or filter by city or region.
- Click any row to use that time zone in the Time Zone Converter.
Your data never leaves your device — 100% private processing.
Reading a world clock
Each entry shows the city name, current local time, UTC offset and date. When DST is active, the offset shifts by +1 hour from the standard offset. Use the world clock for immediate reference; for planning across time zones, use the Time Zone Converter where you can enter a specific date and time.
Glossary
- UTC offset
- The hours and minutes difference between a local time zone and UTC.
- GMT
- Greenwich Mean Time — the solar time at the Prime Meridian; approximately equal to UTC.
Related reading
Frequently Asked Questions
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Why use World Clock?
- Handles timezone conversions and DST automatically
- Supports date arithmetic across years and leap years
- ISO 8601 and human-readable output formats
- Works for historical and future dates with full accuracy
Common use cases
- Calculate how many days until a project deadline
- Find the day of the week for a date in the past
- Convert meeting times across different time zones
- Calculate age from a date of birth
- Add or subtract business days for contract terms
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