GST to UTC
-4hGST
GSTSOURCEUTC
UTCGreen rows indicate typical business hours (9 AM - 5 PM)
GST and UTC on the World Map
The map below highlights the GST (Gulf Standard Time) and UTC (Coordinated Universal Time) timezone regions across the globe.
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.
UTC – Coordinated Universal Time
UTC+00:00Coordinated Universal Time (UTC) is the world's primary time standard, used as the basis for civil time worldwide.
- •UTC is the basis for all civil time zones worldwide.
- •The abbreviation 'UTC' is a compromise between English (CUT) and French (TUC).
- •UTC is based on atomic clocks and is accurate to within a nanosecond per day.
- •Servers and databases worldwide store timestamps in UTC to avoid timezone confusion.
- •Leap seconds are occasionally added to UTC to keep it aligned with Earth's rotation.
GST vs UTC: Offsets, DST and Best Call Times
GST runs on Gulf Standard Time (GST) at UTC+04:00. UTC runs on Coordinated Universal Time (UTC) at UTC+00:00. That puts GST 4 hours behind UTC — a difference of -4h at the current offsets.
In practice, when it is 9:00 AM in GST it is 5:00 AM in UTC. Midnight in GST is 8:00 PM in UTC. Neither zone observes daylight saving time, so the offset between them stays constant all year.
GST to UTC time conversion table
| GST (GST) | UTC (UTC) | Day |
|---|---|---|
| 12:00 AM | 8:00 PM | previous day |
| 6:00 AM | 2:00 AM | same day |
| 7:00 AM | 3:00 AM | same day |
| 8:00 AM | 4:00 AM | same day |
| 9:00 AM | 5:00 AM | same day |
| 12:00 PM | 8:00 AM | same day |
| 3:00 PM | 11:00 AM | same day |
| 5:00 PM | 1:00 PM | same day |
| 6:00 PM | 2:00 PM | same day |
| 9:00 PM | 5:00 PM | same day |
Why people convert GST to UTC time
- Scheduling a call from GST to UTC: a 10:00 AM start in GST lands at 6:00 AM in UTC, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both GST and UTC are inside the 9-to-5 working day between 1:00 PM and 5:00 PM GST time (9:00 AM–1:00 PM UTC). That is roughly 4 hours of usable overlap.
- Watching a live event or market open: GST viewers need 5:00 AM in UTC to catch a 9:00 AM start there, and 4:00 AM if the event is anchored to GST.
- Always state the zone abbreviation, not just the hour. "3:00 PM GST" is unambiguous; "3 PM" across a -4h gap is not.
- Block 1:00 PM–5:00 PM GST as the recurring meeting window if you work primarily from GST and need UTC colleagues present.
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.
About UTC (Coordinated Universal Time)
Coordinated Universal Time (UTC) is the primary time standard by which the world regulates clocks and time. It is effectively the successor to GMT and is based on International Atomic Time with leap seconds added to keep it synchronized with Earth's rotation. UTC is used in aviation, computing, navigation, weather forecasting, and the International Space Station. Most programming languages and databases store timestamps in UTC.
Best time to call between GST and UTC
Both GST and UTC sit inside the 9 AM – 5 PM working day between 1:00 PM–5:00 PM GST, which is 9:00 AM–1:00 PM UTC. That gives roughly 4 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
GST and UTC overlap for about 4 hours during the working day — enough for meetings if you avoid the edges of the window.
GST is 4 hours behind UTC (GST UTC+04:00 → UTC UTC+00:00). The shared working window is 1:00 PM–5:00 PM GST. Remember to re-check around daylight-saving transitions.
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 GST and UTC?
GST (GST, UTC+04:00) is 4 hours behind UTC (UTC, UTC+00:00). The gap is currently -4h.
How do I convert GST time to UTC time?
Add -4h to GST local time. For example, 9:00 AM in GST is 5:00 AM in UTC.
What time is it in UTC right now?
UTC uses UTC at UTC+00:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -4h offset from GST.
What is the best time to call UTC from GST?
Call between 1:00 PM and 5:00 PM GST — that maps to 9:00 AM–1:00 PM UTC and keeps both parties inside the working day.
Which is behind, GST or UTC?
GST is 4 hours behind UTC. When it is 12:00 PM in GST it is 8:00 AM in UTC.
Does daylight saving time affect the GST–UTC difference?
Neither zone observes daylight saving time, so the -4h offset between GST and UTC is fixed all year.
Which other cities share GST's time zone?
GST also covers Dubai, Abu Dhabi, Muscat, Baku, Tbilisi.
Which countries use GST, GST's zone?
GST is used in UAE, Oman, Georgia, Azerbaijan, Mauritius.
Is there a day difference between GST and UTC?
Not normally. The -4h gap only pushes the date over the previous day.
What is the time difference between GST and UTC?
UTC is -4h from GST.
What timezone is GST in?
GST operates on its local timezone.
What timezone is UTC in?
UTC operates on its local timezone.
Which countries use GST (Gulf Standard Time)?
GST is used in UAE, Oman, Georgia, Azerbaijan, Mauritius.
Does GST observe daylight saving time?
No, GST does not observe daylight saving time and remains at UTC+04:00 year-round.
What are some interesting facts about GST?
Dubai uses GST year-round with no daylight saving time. GST is 9 hours ahead of EST and 4 hours ahead of GMT.
Which cities are in the UTC timezone?
Major cities in the UTC timezone include London, Dublin, Reykjavik, Accra, Lisbon, Dakar.
What is the UTC offset for UTC?
Coordinated Universal Time (UTC) is at UTC+00:00.
What should I know about the UTC timezone?
UTC is the basis for all civil time zones worldwide. The abbreviation 'UTC' is a compromise between English (CUT) and French (TUC).
When is it midnight in GST, what time is it in UTC?
When it is 12:00 AM (midnight) in GST (GST), it is -4h later in UTC (UTC).
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