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CalcTidy

Time zone converter

Find what time it will be in another city, with daylight saving time handled for you.

How to use the time zone converter

  1. Choose the date and time you want to convert.
  2. Pick the source time zone, by default your own.
  3. Pick the target time zone and read the converted date and time.

About this tool

Scheduling across time zones is error-prone because offsets change with daylight saving time, and not every country switches on the same date. This converter uses the same time zone database as your operating system, so the result is correct for the exact date you pick.

Pick a date and time in one zone and the converted time appears in the other, along with the current difference in hours.

Frequently asked questions

Does this handle daylight saving time?

Yes. It uses the IANA time zone database built into your browser, so DST rules are applied for the exact date you choose.

What is the difference between GMT and UTC?

For everyday use they are the same time. UTC is the precise scientific standard; GMT is the time zone used in the UK in winter.

How many hours ahead is EST of PST?

Eastern Time is 3 hours ahead of Pacific Time all year, because both switch to daylight time on the same dates.

Why do some zones have 30- or 45-minute offsets?

Some countries chose non-hour offsets, for example India at UTC+5:30 and Nepal at UTC+5:45. The converter handles them.