Technical Specifications & Standards
Official chronometric properties, ISO standards, and international database registry identifiers for Gulf Standard Time:
Daylight Saving Time (DST) Transitions
⬆️ Spring Forward (Clocks Advance)
None (Gulf nations do not observe Daylight Saving Time)
⬇️ Fall Back (Clocks Return)
None
Observing Jurisdictions & Subdivisions
3 Sovereign NationsSovereign nations, administrative subdivisions, and regional territories officially operating under GST:
Regional Subdivisions & Territory Details
Financial Markets & Trading Hours
Bridges early morning business with Mumbai and Singapore, and catches midday trade in London and Frankfurt.
Local Hours: 10:00 - 15:00 GST
UTC Window: 04:00 - 13:00 UTC
Local Hours: 10:00 - 15:00 GST
UTC Window: 04:00 - 13:00 UTC
Local Hours: 10:00 - 14:00 GST
UTC Window: 04:00 - 13:00 UTC
Major Cities in GST
Primary metropolitan centers and financial hubs observing this time zone:
Adoption History & Astronomical Facts
Year Established: 1972
Adopted following the foundation of the United Arab Emirates in December 1971, replacing disparate British military airfield times with a single four-hour offset ahead of Greenwich across the Emirates and neighboring Oman.
In January 2022, the UAE shifted its official federal working week from Sunday–Thursday to Monday through Friday noon, aligning local government and bank working hours with European and North American trading schedules.
Frequently Asked Questions about GST
What does GST stand for?
GST stands for Gulf Standard Time, four hours ahead of Coordinated Universal Time (UTC+4).
Does Dubai use daylight saving time?
No. The UAE and Oman stay on Gulf Standard Time (UTC+4) without any seasonal clock shifts.
What is the time difference between Dubai and London?
Dubai is four hours ahead of London in winter (GMT), and three hours ahead in summer (BST).