World ClockNEW
See the local time in 24 cities and compare the time difference
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AllFreeTool is a free online world clock that shows the current time and date in any city you add, together with the offset between that city and your own local time. Your own time zone is detected automatically by the browser, and you can add as many cities as you like and remove them again whenever you want. It works entirely locally, with no server involved.
It is useful when you schedule a call with colleagues in another office, plan a trip across several time zones, or keep an eye on a market that opens while you are asleep. The built-in time zone support in the browser handles daylight saving changes, so the readings stay correct through the year without any manual adjustment.
Why use World Clock on AllFreeTool?
Any City
Add cities by name or by IANA time zone, such as Asia/Shanghai or Europe/Paris.
Offset Display
Each city shows the local time, the date, and how far ahead or behind it is.
Quick Add
Type a city name and add it in a couple of seconds, then remove it just as quickly.
No Requests
The browser time zone database does the work, so nothing about you is ever transmitted.
How to use World Clock
Add a City
Type a city or time zone name in the field, then press the add button.
Compare Times
Read the local time, date and the difference from your own zone for each city.
Remove Cities
Clear the list of cities you no longer need with the remove control on each row.
Common questions
How do I add a city that is not listed?＋
Type the city name and the tool resolves it through the time zone information built into your browser, and you can also enter an IANA identifier directly, for example Asia/Shanghai or America/New_York. Any location with a recognised time zone can be added that way.
Does it handle daylight saving time?＋
Yes. The readings come from the browser's own time zone database, which applies daylight saving rules for the current date in each region. The offset shown therefore reflects what is actually true right now rather than a fixed rule.
How is my own local time zone found?＋
The tool reads the time zone that your operating system and browser report, and displays it at the top as your reference. That is also the baseline against which the ahead or behind figure for every other city is calculated.
Is anything uploaded to a server?＋
No. Every calculation uses the time zone data already present in your browser, so there is no network request at all and none of the cities you are tracking is transmitted or stored. The list lives only in the page for as long as it is open.