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Time zone converter

Wall time in one IANA zone to another, including daylight-saving transitions encoded in the zone database.

Defaults to your region. Switch to compare any other scale.

Result

Tue, Sep 15, 2026, 14:30 GMT+1

In the target zone

Europe/London · BST · UTC+01:00

  • Source timeTue, Sep 15, 2026, 09:30 EDT
  • UTCTue, Sep 15, 2026, 13:30 UTC
  • Offset differenceTarget is 5 hours ahead
  • AbbreviationsEDT → BST
  • UTC / GMT offsetsUTC−04:00 / GMT−04:00 → UTC+01:00 / GMT+01:00
  • Target (ISO-ish)2026-09-15T14:30:00+01:00

About this tool

Timezone conversion maps a local date and time from one IANA zone to another, respecting offsets and daylight-saving transitions encoded in the zone database.

Pick source and target zones, enter the wall time you have, and read the corresponding time elsewhere. City search lives on the city timezone page when you prefer place names to zone IDs.

Always confirm critical meetings near DST boundaries. The page is a converter, not a scheduling product with invitations.

Formula

  • Instant = wall clock interpreted in the source IANA zone (DST aware)
  • Target display = same instant formatted in the target zone
  • Offset difference = target UTC offset − source UTC offset at that instant

How it is calculated

  1. Enter the date and time as shown on the wall in the source city.
  2. Choose From and To zones (searchable labels include GMT/UTC offsets and CET, IST…).
  3. Read the target local time, UTC, offset difference, and abbreviations.

Questions

Does India observe DST?

No. Asia/Kolkata is IST (UTC+05:30) all year. Germany, the Baltics, the US, and parts of Australia do switch.

Is GMT the same as UTC?

For everyday conversion they match (UTC+00 / GMT+00). Historically GMT is a time standard; UTC is the civil reference we use in labels.

What timezone is Riga in?

Europe/Riga — EET/EEST (UTC+02/+03). Use the City timezone tool for hundreds of cities.

Sources

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