Timezone Converter
Convert a local datetime between IANA zones with DST rules explained. Fully client-side — no account, uploads, or remote storage.
Added Apr 18, 2026 · Updated Jun 12, 2026
Input
Result
Enter a value for date & time to see your result.
How it works
Converts a date and time from one timezone to another. Automatically handles Daylight Saving Time (DST) transitions using the IANA timezone database via Luxon.
Step by step
- 01Enter the date and time you want to convert.
- 02Select the source timezone (where the time is from).
- 03Select the target timezone (where you want to convert to).
- 04The result shows the converted time and UTC offset difference.
Examples
2024-01-15 12:00 UTC to New York
New York is UTC-5 in January (EST), so noon UTC = 7 AM EST.
Inputs
- Date & Time:
- 2024-01-15T12:00
- From Timezone:
- UTC
- To Timezone:
- America/New_York
Result
- Converted Time:
- Jan 15, 2024, 7:00 AM EST
- UTC Time:
- Jan 15, 2024, 12:00 PM UTC
Frequently asked questions
Does this handle Daylight Saving Time automatically?
Yes. The converter uses the IANA timezone database (via Luxon) which includes all historical and future DST transitions for every timezone.
Why do some countries not observe Daylight Saving Time?
Many countries near the equator (like Singapore and India) or in specific regions choose not to shift clocks because the day length variation is minimal throughout the year.
Why does the offset show +05:30 instead of a whole hour?
Some regions use half-hour or quarter-hour offsets from UTC for historical and political reasons. IANA data includes those exact offsets, including DST shifts where they apply.
If I convert 'now' across zones, could my meeting miss a DST gap?
Yes. When clocks spring forward, a local time may not exist; when they fall back, it may exist twice. Always confirm recurring meetings with a calendar product that stores the absolute instant, not just the wall time.
Does this tool store the times I convert?
Conversions run in your browser for quick checks. Avoid pasting highly sensitive timestamps if your threat model requires air-gapped handling; we do not operate a conversion API for this UI.