GMT to GST Time Converter - Live World Clock

Convert time between Greenwich Mean Time (GMT) and Gulf Standard Time (GST). See current time with live clocks.

United Kingdom (GMT)

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06:27:46 PM
Thursday, August 20, 2026

United Arab Emirates (GST)

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09:27:46 PM
Thursday, August 20, 2026

Current Time Difference

GMT is -4 hours behind GST

What is GMT (Greenwich Mean Time)?

Greenwich Mean Time (GMT) is the reference point for world time zones, UTC+0:00.

Countries and Regions Using GMT

Primary Country:

  • United Kingdom

Also Used By:

  • Ireland
  • Portugal

Key Facts about GMT:

  • ✓ Prime meridian reference point
  • ✓ London financial center
  • ✓ Historical timekeeping standard
  • ✓ Major Cities: London, Manchester, Birmingham, Leeds, Glasgow
  • ✓ UTC Offset: +0:00 (+1:00 during BST)

What is GST (Gulf Standard Time)?

Gulf Standard Time (GST) used in the Middle East, UTC+4:00.

Countries and Regions Using GST

Primary Country:

  • United Arab Emirates

Also Used By:

  • Oman

Key Facts about GST:

  • ✓ Major financial centers
  • ✓ No DST observed
  • ✓ Oil and business hub
  • ✓ Major Cities: Dubai, Abu Dhabi, Muscat
  • ✓ UTC Offset: +4:00

GMT to GST Time Difference

Standard Time Difference:

GMT is -4 hours behind

Common Use Cases:

  • • Business meetings between United Kingdom and United Arab Emirates
  • • International collaboration across timezones
  • • Scheduling calls and conferences

Frequently Asked Questions

Which countries are in GMT time zone?

United Kingdom is the primary country using GMT (+0:00). Other countries include: Ireland, Portugal.

Which countries are in GST time zone?

United Arab Emirates is the primary country using GST (+4:00). Other countries include: Oman.

How many hours is GMT ahead of GST?

GMT is -4 hours behind GST.

Does United Kingdom observe Daylight Saving Time?

Yes, United Kingdom observes Daylight Saving Time. During DST, GMT changes to BST (British Summer Time) with UTC offset of +1:00.