World Clock

What this tool does

World Clock shows the live current time, updating every second, for a user-chosen set of IANA time zones at once, each labelled with its current UTC offset (which can change with daylight saving time). Add or remove zones freely to build the exact set of clocks you need.

Keeping track of what time it is right now for colleagues, family or clients spread across several countries means either doing mental time-zone math constantly or keeping several clock widgets open, and the UTC offset for any given zone can itself shift during the year with daylight saving time.

This world clock shows the live, second-by-second current time for any set of time zones you choose, each clock labelled with that zone’s current UTC offset so you can see at a glance how far it currently sits from UTC, correctly reflecting any active daylight saving adjustment.

How to use World Clock

1. Pick a Time zone from the dropdown.
2. Press Add clock to add it to your live clock grid.
3. Watch each clock update automatically every second.
4. Check the current UTC offset shown under each zone name.
5. Press the remove icon on any clock card to take it out of the grid.

Tips for better results

• The UTC offset shown under each clock reflects daylight saving time where applicable, so the same zone can show a different offset depending on the time of year.
• Add every zone relevant to a specific project or relationship once, and the set stays available each time you return to the tool.
• Watching several zones at once is the fastest way to spot a workable overlap window for scheduling an international call.
• A zone with no daylight saving time, such as most of the tropics, will show the same offset all year round, unlike zones that do observe it.

Common use cases

• Keeping a live overview of the current time for remote team members or family across several countries.
• Finding a workable meeting time overlap across multiple time zones at a glance.
• Displaying a multi-city live clock on a dashboard or shared screen.
• Checking whether a specific zone is currently observing daylight saving time by watching its offset.

Common mistakes to avoid

• Assuming a zone’s UTC offset is fixed year-round; many zones shift by an hour during daylight saving time, which this tool reflects live but a memorised offset would not.
• Adding the same zone twice; the tool already prevents duplicate zones from being added to the grid.
• Expecting the clock to keep running in a background browser tab indefinitely without the tab staying open; the live update relies on the page remaining loaded.