Time Zone Converter
Use this time zone converter to quickly convert times between any world time zones. Includes presets for common zones and DST handling.
About Time Zone Converter
This time zone converter lets you quickly convert any date and time between world time zones. Built on the browser's native Intl.DateTimeFormat API, it handles daylight saving time transitions automatically and supports every IANA time zone.
Easy Conversion
Select a date and time, choose a source time zone and a target time zone, and see the converted result instantly. A swap button lets you reverse the conversion direction with one click. The current time in both zones is also displayed for quick reference.
Common Presets
Quick-access buttons for the most frequently used time zones, including UTC, EST, PST, GMT, CET, IST, JST, and AEST, make it easy to set either the source or target without scrolling through a long list.
Searchable Dropdowns
Both timezone selectors include a search filter so you can type a city or region name to find the correct zone quickly. This is especially useful when working with less common time zones or when you are unsure of the exact IANA zone identifier.
Common Uses
- Scheduling meetings across international teams
- Converting flight departure and arrival times
- Coordinating events with participants in different countries
- Checking business hours in another city
- Planning international calls or livestreams
If you work with timestamps in code, the Unix timestamp converter pairs well with this tool. You can also use the date difference calculator to find the gap between two dates.
All conversions happen in your browser using built-in timezone data. No information is sent to any server.
Frequently Asked Questions
How does the time zone converter handle daylight saving time?
The converter uses the browser's built-in Intl.DateTimeFormat API, which automatically accounts for daylight saving time (DST) transitions. When a timezone is observing DST, the converted time reflects the current offset including the DST adjustment.
What is UTC and why is it used as a reference?
UTC (Coordinated Universal Time) is the global time standard from which all time zones are defined as offsets. It does not observe daylight saving time, making it a stable reference point. UTC replaced GMT as the international standard, though the two are nearly identical in practice.
Can I convert times for a future date?
Yes. Select any date and time using the date/time picker to convert it between time zones. The converter correctly handles future DST transitions, so a conversion for next summer will reflect the appropriate offset even if the source or target zone switches to daylight saving time.
How many time zones does this converter support?
The converter supports all IANA time zones recognized by your browser, which typically includes over 400 zones covering every region in the world. You can search by city or region name, or use the common presets (UTC, EST, PST, CET, IST, JST, and more) for quick access.