Time Zone Converter
Scheduling across time zones without the guesswork: search any two of the world's time zones, pick a date and time, and see exactly what it is in the other zone — with daylight saving handled automatically and live clocks showing the current time in both places.
Fri, Sep 4, 2026, 2:09 PM in UTC is
Fri, Sep 4, 2026, 3:09 PM
in Europe/London (UTC+01:00)
2:09:21 PM
Current time · UTC ()
3:09:21 PM
Current time · Europe/London (UTC+01:00)
How to Use Time Zone Converter
Choose two zones
Search and select the source and destination time zones — offsets are shown next to each.
Pick a date and time
Enter the date and time in the source zone using the picker.
Read the conversion
See the equivalent date and time in the destination zone, plus live current-time clocks for both.
About Time Zone Converter
How time zone conversion works
Every conversion goes through Coordinated Universal Time (UTC), the global reference. Your chosen wall-clock time is interpreted in the source zone, translated to a UTC instant, then re-expressed in the destination zone. The tricky part is that a zone's UTC offset isn't constant — daylight saving time shifts many zones by an hour for part of the year, on dates that differ by country and hemisphere. This converter uses your browser's built-in IANA time zone database, the same authoritative source operating systems use, so DST rules are applied correctly for the specific date you pick.
Why zone names beat abbreviations
Abbreviations like CST are ambiguous — it can mean Central Standard Time (UTC−6), China Standard Time (UTC+8), or Cuba Standard Time (UTC−5). That's why this tool uses IANA zone names like America/Chicago and Asia/Shanghai, each tied to a real place with its full DST history. The searchable dropdowns show every zone with its current UTC offset, so you can find a city by name and trust the result. Note that offsets shown update with the season: America/Chicago reads UTC−05:00 in summer and UTC−06:00 in winter.
Built for scheduling across borders
The most common cross-zone mistake is applying today's offset to a future date that falls on the other side of a DST switch — a 9 a.m. New York call booked from London can silently move an hour twice a year, since the US and Europe change clocks on different weeks. Because this converter resolves the offset for the exact date you enter, those edge weeks are handled correctly. The live clocks underneath show the current time in both zones, useful for a quick 'is it too late to call?' check before you hit send.
Common uses for Time Zone Converter
- Schedule a meeting between offices in different countries without off-by-one-hour errors
- Convert a webinar or product launch time into your local zone
- Check the current time in a colleague's or family member's city before calling
- Plan flight arrivals and hotel check-ins in the destination's local time
- Coordinate a game release, auction close, or deadline announced in another zone
Frequently Asked Questions
Does the converter handle daylight saving time?
Yes, automatically. It resolves each zone's UTC offset for the specific date and time you enter using the IANA time zone database built into your browser, so a January conversion and a July conversion between the same two cities can correctly differ by an hour — or two, around the weeks when regions switch on different dates.
What are the IANA zone names like America/New_York?
They're the standard identifiers from the IANA time zone database, naming a region by continent and principal city. Unlike abbreviations (EST, CST), each name is unambiguous and carries the location's complete offset and DST history. Type a city name into the search box to find its zone quickly.
Why did the UTC offset shown next to a zone change?
Offsets are displayed for the current moment, and zones that observe daylight saving shift seasonally — America/New_York is UTC−05:00 in winter and UTC−04:00 in summer. The conversion itself always uses the offset in force on the date you selected, not today's.
What happens if I pick a time that doesn't exist due to DST?
When clocks spring forward, one hour vanishes locally (2:30 a.m. may never occur that night). If you enter such a time, the converter resolves it to the nearest valid instant the same way operating systems do, shifting by the skipped hour. Ambiguous fall-back times resolve to one of the two possible instants.
Is my location or schedule data uploaded anywhere?
No. Zone lists, offsets, and conversions all come from your browser's built-in internationalization engine and run entirely on your device. The tool defaults to your system time zone for convenience, but nothing you enter is transmitted or stored.