GMT to GST
+3hGMT
GMTSOURCEGST
GSTGreen rows indicate typical business hours (9 AM - 5 PM)
GMT and GST on the World Map
The map below highlights the GMT (Greenwich Mean Time) and GST (Gulf Standard Time) timezone regions across the globe.
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
- •The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
- •GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
- •Iceland uses GMT year-round and never observes daylight saving time.
- •The UK switches from GMT to BST (British Summer Time) in late March each year.
GST – Gulf Standard Time
UTC+04:00Gulf Standard Time (GST) is used in the UAE, Oman, and other Gulf states, 4 hours ahead of UTC.
- •Dubai uses GST year-round with no daylight saving time.
- •GST is 9 hours ahead of EST and 4 hours ahead of GMT.
- •The Dubai Financial Market (DFM) operates on GST.
Time Conversion Guide: GMT to GST
GMT (Greenwich Mean Time) operates on the Greenwich Mean Time (UTC+00:00). GST (Gulf Standard Time) uses Gulf Standard Time (UTC+04:00).
The time difference between GMT and GST is 180 minutes (+3h). When it's noon in GMT, it's 03:00 PM in GST.
Why Convert GMT to GST Time?
Coordinating across the 3-hour time difference between GMT and GST doesn't have to be complicated. This converter provides a clear and accurate way to translate time from GMT to GST, making it easier to manage international relationships and business dealings.
Quick Tip: Use calendar apps that automatically adjust for time zones when sending invites from GMT to GST. This ensures everyone sees the correct time for their location.
About GMT (Greenwich Mean Time)
Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.
About GST (Gulf Standard Time)
Gulf Standard Time (GST) is the time zone used in the United Arab Emirates, Oman, and other Gulf states. GST does not observe daylight saving time. Dubai and Abu Dhabi, major international business and tourism hubs, operate on GST.
Best Time to Call Between GMT and GST
If you want to reach someone in GST during standard business hours (9 AM – 5 PM GST), the best time to call from GMT would be:
- GST 9:00 AM = GMT 06:00 AM
- GST 12:00 PM = GMT 09:00 AM
- GST 5:00 PM = GMT 02:00 PM
Business Hours Overlap
GMT and GST have a partial business hours overlap. The best window for meetings and calls is when both locations are in their working hours.
Ultimately, understanding the +3h difference between GMT and GST empowers you to coordinate better. Whether for business or personal reasons, this tool ensures you're always on time.
🕐 Daylight Saving Time Info
GMT
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
GST
Does not observe DST
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between GMT and GST?
GST is +3h from GMT.
What timezone is GMT in?
GMT operates on its local timezone.
What timezone is GST in?
GST operates on its local timezone.
Which countries use GMT (Greenwich Mean Time)?
GMT is used in United Kingdom, Ireland, Iceland, Portugal (mainland), Ghana, Senegal, and 9 more countries.
Does GMT observe daylight saving time?
Yes, GMT switches to BST during summer months.
What are some interesting facts about GMT?
GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
Which cities are in the GST timezone?
Major cities in the GST timezone include Dubai, Abu Dhabi, Muscat, Baku, Tbilisi.
What is the UTC offset for GST?
Gulf Standard Time (GST) is at UTC+04:00.
What should I know about the GST timezone?
Dubai uses GST year-round with no daylight saving time. GST is 9 hours ahead of EST and 4 hours ahead of GMT.
When is it midnight in GMT, what time is it in GST?
When it is 12:00 AM (midnight) in GMT (GMT), it is +3h later in GST (GST).
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