Time Zone Converter
Convert any date and time between 18 world time zones. Daylight saving time is handled automatically.
UTC
Apr 19, 2026, 4:00 AM
America/New York
Apr 19, 2026, 12:00 AM
How to use this converter
- Use the date & time picker to select the date and time you want to convert.
- Choose the time zone the time is expressed in from the From dropdown.
- Select your target time zone in the To dropdown.
- The converted time appears instantly in both result boxes — DST is applied automatically.
- Swap the two dropdowns to reverse the conversion direction.
Understanding Time Zones and UTC Offsets
The world uses zones offset from Coordinated Universal Time (UTC). India at UTC+5:30 is 5h30 ahead of UTC; US Eastern standard time is UTC-5. Offsets matter for scheduling and reading timestamps.
Daylight saving time changes offsets seasonally in many regions. This tool uses the browser IANA database via Intl.DateTimeFormat, so DST is handled per zone.
Always state the zone when sharing times internationally. Use this converter to align participants, then put explicit zones in calendar invites.
DST transitions create “missing” or “duplicate” hours once per year—confirm whether your meeting uses wall-clock local time or UTC anchors. Aviation and trading systems often standardize on UTC internally.
Pair with the date-difference calculator when calculating multi-day spans that cross a DST shift.
Related tools
These free tools pair well with this page — open them in a new tab to finish your workflow.
Frequently Asked Questions
How does the timezone converter work?
Enter a time and select the source and target timezones. The converter instantly calculates the equivalent time in the destination timezone, accounting for UTC offsets and DST.
Does it handle Daylight Saving Time?
Yes. The converter uses the IANA timezone database to correctly apply DST rules for each region, so your conversions are accurate year-round.
Can I convert between more than two timezones?
Currently the tool converts between one source and one target timezone at a time. Run multiple conversions to compare several zones.
Why do some cities share the same UTC offset?
Cities at similar longitudes often share an offset, but their DST schedules may differ. Always use the city/region name rather than a raw UTC offset for accuracy.
Is the converter accurate for past and future dates?
Yes, as long as the timezone rules for those dates are in the IANA database. Very historical dates (pre-1900) may have less reliable data.
Does it work offline?
Yes. All timezone data is bundled with the tool, so no internet connection is required after the page loads.