Time Zone Converter
Convert any date and time from one time zone to another and compare the same moment across multiple cities. Free, instant and private — everything is calculated right in your browser.
The same moment around the world
| Location | Local date & time | UTC offset |
|---|
How to use the time zone converter
- Pick a date and time. The converter starts with the current moment in your own time zone — change the date and time to whatever you want to convert, for example the start of a meeting.
- Choose the two time zones. Select the “from” and “to” zones from the lists (common cities are at the top). Use the ⇄ button to swap them instantly.
- Read the result and compare cities. The converted time appears immediately, together with both UTC offsets and the hour difference. Add more cities to the comparison table to see the same moment everywhere at once, and copy the result with one click.
About this tool
This free time zone converter is ideal for scheduling meetings across offices, planning calls with family abroad, announcing webinar or game-release times, and checking flight arrival times. It uses your browser’s built-in IANA time zone database, so daylight saving time (DST) rules are applied automatically for the exact date you pick — the difference between New York and London, for instance, is not always the same number of hours all year round.
All calculations happen locally in your browser: nothing is uploaded, stored or logged. If you just want to glance at the current time in several places rather than convert a specific moment, try the companion World Clock.
Frequently asked questions
Does the converter handle daylight saving time?
Yes. Offsets are looked up in the IANA time zone database that ships with your browser, for the exact date and time you enter. That is why converting a summer date and a winter date between the same two cities can give different hour differences.
What does the UTC offset mean?
UTC (Coordinated Universal Time) is the global reference time. An offset like UTC+5:30 means local clocks are 5 hours 30 minutes ahead of UTC. The converter shows the offset of each zone at the chosen moment, so you can see exactly how the conversion was made.
Why does the result say “next day” or “previous day”?
When the hour difference pushes the converted time past midnight, the calendar date changes. For example, 9:00 PM Monday in Los Angeles is already 2:00 PM Tuesday in Sydney. The tool flags this so you never book a meeting on the wrong day.
What happens with times that don’t exist because of DST?
When clocks “spring forward”, one hour is skipped (for example 2:30 AM may never occur that night). If you enter such a time, the converter maps it to the nearest valid instant, which is the behaviour used by most calendar apps.