World Clock
The World Clock shows live local time for major cities across North America, Europe, Asia, the Middle East and Oceania. Select a city or IANA time zone for a focused view, or compare the city cards at a glance. The clock uses browser-supported international time-zone rules, which means daylight-saving adjustments are applied according to the selected zone rather than using a fixed manual offset.
How to use the World Clock
- Choose a city or time zone from the selector.
- The selected zone shows its live local date and time.
- Compare the major-city cards to see multiple international times simultaneously.
- Times update automatically while the page remains open.
- The tool uses named IANA time zones such as America/New_York and Europe/London.
- Named zones are preferable to fixed UTC offsets because daylight-saving rules can change local time during the year.
- Use the related Time Zone Converter when you need to convert a specific scheduled time rather than only viewing the current time.
Examples
New York and London
Compare New York and London before arranging a call across North America and Europe.
Toronto and Karachi
Use the live clocks to see the current local time difference before contacting someone internationally.
Tokyo and Sydney
Compare major Asia-Pacific cities without manually calculating UTC offsets.
Dubai and Delhi
Check current business hours in two commonly connected international markets.
Frequently asked questions
What is a world clock?
A world clock displays the current local time in multiple cities or time zones around the world.
Does the World Clock handle daylight saving time?
It uses browser-supported IANA time-zone data, which normally applies daylight-saving rules for named zones automatically.
Why can two cities with similar longitude show different times?
Political time-zone boundaries, daylight-saving rules and regional decisions determine civil time, not longitude alone.
What is an IANA time zone?
It is a named time-zone identifier such as America/Toronto or Asia/Tokyo that carries regional clock rules instead of only a fixed numeric offset.
Can I use this to schedule a meeting?
The World Clock helps compare current local times. For converting a specific future or past meeting time, use the Time Zone Converter.
Does the displayed time update automatically?
Yes. The displayed city times refresh while the page remains open.
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