Time Zone Converter
Convert times across time zones, with daylight saving handled correctly.
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World Clock
See the current time in cities around the world at a glance.
World Clock tool
Your city list is remembered in this browser only. It is never transmitted.
About the World Clock
World Clock shows the live time in as many places as you want to watch, updating every second. Add the cities your colleagues, family or markets are in, and the whole board stays current.
Each entry shows the time, the day, the offset from UTC and how far ahead or behind your own time it is. A day indicator marks whether it is currently working hours, evening or the middle of the night there, which is the thing you actually want to know before sending a message.
Your selection is remembered in your browser so the same cities are there next time. That preference is stored locally and never leaves your device, alongside your theme choice.
How to use the World Clock
- Add a citySearch by name and add it to the board.
- Watch the timesEvery clock updates each second.
- Reorder or removeThe board is yours to arrange.
- Come back laterYour selection is remembered in this browser.
Features
- Live clocks updating every second
- Any number of cities
- Day, date and UTC offset for each
- Difference from your own time
- Indicator for working hours, evening and night
- 12 and 24 hour display
- Selection remembered locally between visits
Who uses this tool
The world clock is used by writers, developers, students, marketers and anyone else who needs the job done once without installing software. Common cases include:
- Keeping track of colleagues in other countries
- Knowing whether it is a reasonable hour to call family
- Watching market open and close times
- Checking several locations before scheduling
- Keeping a travel itinerary's times straight
Frequently asked questions
How accurate is the time shown?
It comes from your device clock, so it is as accurate as your device is. If your system time is wrong, every clock here is wrong by the same amount. The offsets between zones are always correct.
Is daylight saving reflected?
Yes. Zones come from your browser's time zone database, so each city shows its current local time including whatever daylight saving rule applies to it right now.
Is my city list saved?
In your browser's local storage, on your device only. It is never transmitted, and clearing your browser's site data removes it.
Why do two cities in the same country show different times?
Because large countries span several zones. The United States, Australia, Brazil and Russia all do. Each city is shown with its own zone rather than a national one.
What does the day indicator mean?
A simple band showing whether the local time falls in working hours, the evening, or overnight. It is a guide for whether contacting someone is reasonable, not a statement about their actual schedule.
Does it work offline?
Yes, once the page has loaded. Everything comes from your device clock and your browser's zone data.
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