Timezone Offset Calculator

Free timezone offset calculator. Find UTC offset for any timezone with DST awareness. Essential for developers and international schedulers.

Determine the UTC offset for any timezone on a specific date. The tool accounts for daylight saving time changes, showing you the exact offset (like UTC+9 or UTC-5) for any location.

Common use cases

  • Developers working with timestamp conversions
  • Database administrators handling timezone data
  • API developers specifying timezone offsets
  • International event coordinators
  • Travel planners checking time differences

How to use

  1. Select a timezone from the dropdown
  2. Optionally select a date (for DST accuracy)
  3. View the UTC offset and full timezone name
  4. Copy the offset for your records

FAQ

Why does the offset change by date?

Many regions observe daylight saving time, which shifts the offset by one hour during summer months.

What's the difference between UTC and GMT?

For practical purposes they're the same. UTC is the modern standard, while GMT is the historical term.

Why is the offset formatted like 'GMT-5'?

This is the standard format used by browsers. GMT-5 means 5 hours behind UTC.