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Timezone Converter Online — Convert Time Between Zones

Convert a date and time between timezones without doing the offset math yourself. Pick a source moment and timezone, then add as many target timezones as you need — each one updates instantly to show the equivalent wall-clock time and its current UTC offset. It is built for scheduling meetings across regions, checking when a scheduled job will run, or converting log timestamps captured in one timezone into another for debugging.

Features

  • Unlimited target timezones

    Add or remove target rows freely to compare a moment across as many regions as you need.

  • Full IANA timezone list

    Uses your browser's complete IANA timezone database when available, with a solid fallback list otherwise.

  • Live UTC offset

    Each target shows its current UTC offset (e.g. UTC+7), accounting for daylight saving time.

  • Use current time

    One click loads the current date and time so you can see "right now" across every timezone.

How to convert time between timezones

Convert any date and time into multiple timezones at once.

  1. Set the source momentPick a date and time, then choose the timezone that time is expressed in.
  2. Add target timezonesUse "Add timezone" to list every timezone you want to compare against.
  3. Read the converted timesEach target row shows the equivalent wall-clock time and its current UTC offset.

Examples

Convert UTC noon to Ho Chi Minh City

Input
2026-01-01 12:00 (UTC)
Output
Asia/Ho_Chi_Minh: Jan 1, 2026, 7:00:00 PM (UTC+7)

Convert a New York meeting time to London and Tokyo

Input
2026-03-15 09:00 (America/New_York)
Output
Europe/London: Mar 15, 2026, 1:00:00 PM (UTC+0)
Asia/Tokyo: Mar 15, 2026, 10:00:00 PM (UTC+9)

Frequently Asked Questions

Does this tool account for daylight saving time?
Yes. The conversion reads each timezone's actual current offset from your browser's IANA timezone database, so daylight saving transitions are reflected automatically for both the source and target timezones.
Where does the list of timezones come from?
The tool uses Intl.supportedValuesOf('timeZone') when your browser supports it, giving you the full IANA timezone list. On older browsers it falls back to a curated list of about 30 common zones.
How many target timezones can I add?
There is no fixed limit. Use the "Add timezone" button to add as many rows as you need and "Remove" to drop ones you no longer want to compare.
Is this precise across daylight saving time transitions?
The tool computes each timezone's offset for the specific moment you entered, which is correct for the vast majority of times. Right at the exact hour of a DST changeover, offsets can be ambiguous in any timezone system, so double-check times that fall within that one-hour window.
Can I convert a time in the past or future?
Yes. Enter any date and time, past or future, and the tool will use the timezone rules that applied (or are scheduled to apply) at that moment.
Does the tool send my data anywhere?
No. All conversion happens locally in your browser using the built-in Intl API. Nothing is sent to a server.