GST
Gulf Standard Time
UTC+4 — No daylight saving time
Abbreviation
GST
UTC Offset
UTC+4
Full Name
Gulf Standard Time
DST
No
About GST — Gulf Standard Time
Gulf Standard Time (GST) is UTC+4, the permanent time zone for the United Arab Emirates and Oman. No daylight saving time is ever observed in these countries, making GST one of the world's most stable and predictable offsets. Dubai—the UAE's largest city—uses GST and serves as a major global aviation, finance, and logistics hub. GST places the Gulf between the time zones of Europe (CET, UTC+1 to UTC+2) and South Asia (IST, UTC+5:30), giving it a natural position as a bridge between Western and Eastern business hours.
Countries Using GST
- United Arab Emirates
- Oman
Major Cities in GST
Conversion Examples for GST
| UTC Time | GST (UTC+4) |
|---|---|
| 00:00 UTC | 04:00 GST |
| 06:00 UTC | 10:00 GST |
| 09:00 UTC | 13:00 GST |
| 12:00 UTC | 16:00 GST |
| 15:00 UTC | 19:00 GST |
| 18:00 UTC | 22:00 GST |
| 21:00 UTC | 01:00 GST |
Related Time Zones
Tools
About GST (GST)
GST (UTC+4) is a standard time zone designation used by United Arab Emirates, Oman. Time zone abbreviations like GST refer to a specific UTC offset rather than a geographic region — multiple time zones around the world may share the same offset while using different local names.
When scheduling internationally, it is more reliable to refer to a city name or IANA time zone identifier (like America/New_York or Asia/Dubai) than to a short abbreviation, since abbreviations are not globally standardised and can be ambiguous — for example, CST refers to both Central Standard Time (UTC−6) in North America and China Standard Time (UTC+8).
Use the conversion table on this page to see what any UTC hour maps to in GST, and use the tools below to convert between GST and any other time zone or city in real time.
UTC Offset vs IANA Time Zone: What's the Difference?
UTC Offset
A UTC offset like UTC+4 or UTC−5 is a simple number expressing how many hours and minutes a location is ahead of or behind Coordinated Universal Time. It is fixed and does not carry any information about DST rules or transitions.
IANA Time Zone
An IANA identifier like Europe/London or Asia/Tokyo is a database entry that includes the full history of UTC offset changes, DST rules, and historical exceptions for that location. IANA identifiers should always be preferred in software and scheduling systems.
Convert GST Time
GST — Frequently Asked Questions
GST is UTC+4, the permanent time zone for the United Arab Emirates (Dubai, Abu Dhabi, Sharjah) and Oman (Muscat). No daylight saving time is observed.
The United Arab Emirates and Oman use Gulf Standard Time (UTC+4) year-round without daylight saving.
GST (UTC+4) is 4 hours ahead of GMT (UTC+0).
Not entirely. Qatar, Bahrain, Saudi Arabia, Kuwait, and Iraq use UTC+3 (Arabia Standard Time), not UTC+4. Only the UAE and Oman use GST (UTC+4).