UTC to GST time converter

Enter a time in UTC to get the matching time in GST, whether it falls on the next or previous day, and a full 24-hour table. Handy for planning calls between a UTC schedule and Dubai and Muscat.

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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.

How to use it

  1. Enter time in utc and day in utc (optional).
  2. The result appears straight away and updates as you edit.
  3. Copy the result, or copy a link that keeps the same values to share it.

How it is calculated

GST time = UTC time + 4 hours, because GST is UTC+4 and UTC is UTC+0. If the result reaches 24:00 or more, subtract 24 hours and move to the next day; if it drops below 00:00, add 24 hours and move to the previous day.

Example

Inputs: Time in UTC = 22:00, Day in UTC (optional) = Thursday. Result: Time in GST: 02:00; Day change: Next day (+1); Offset difference (GST minus UTC): 4 hours.

Limits and caveats

  • Fixed offsets are used: UTC = UTC+0 and GST = UTC+4, whatever the date.
  • GST here is Gulf Standard Time (UTC+4) of the UAE and Oman.

Questions about this tool

What time is 09:00 UTC in GST?

09:00 UTC is 13:00 GST on the same day, because GST is 4 hours ahead of UTC.

Does daylight saving time change the result?

No. UTC never changes and the UAE and Oman do not use daylight saving, so the 4 hour gap between UTC and GST holds all year.

Which GST does this tool use?

Here GST means Gulf Standard Time, UTC+4, used in the UAE and Oman. The same letters also stand for South Georgia Time (UTC-2), which is rarely meant.