EST to GST
+9hEST
ESTSOURCEGST
GSTGreen rows indicate typical business hours (9 AM - 5 PM)
EST and GST on the World Map
The map below highlights the EST (Eastern Standard Time) and GST (Gulf Standard Time) timezone regions across the globe.
EST – Eastern Standard Time
UTC-05:00Eastern Standard Time (EST) is the time zone for the eastern United States and Canada, 5 hours behind UTC.
- •EST is the most widely used time zone in the United States by population.
- •The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
- •23 US states are fully or partially in the Eastern Time Zone.
- •EST was established by the Standard Time Act of 1918.
- •Over 47% of the US population lives in the Eastern Time Zone.
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: EST to GST
EST runs on Eastern Standard Time (EST) at UTC-05:00. GST runs on Gulf Standard Time (GST) at UTC+04:00. That puts EST 9 hours ahead of GST — a difference of +9h at the current offsets.
In practice, when it is 9:00 AM in EST it is 6:00 PM in GST. Midnight in EST is 9:00 AM in GST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
EST to GST time conversion table
| EST (EST) | GST (GST) | Day |
|---|---|---|
| 12:00 AM | 9:00 AM | same day |
| 6:00 AM | 3:00 PM | same day |
| 7:00 AM | 4:00 PM | same day |
| 8:00 AM | 5:00 PM | same day |
| 9:00 AM | 6:00 PM | same day |
| 12:00 PM | 9:00 PM | same day |
| 3:00 PM | 12:00 AM | next day |
| 5:00 PM | 2:00 AM | next day |
| 6:00 PM | 3:00 AM | next day |
| 9:00 PM | 6:00 AM | next day |
Why people convert EST to GST time
- Scheduling a call from EST to GST: a 10:00 AM start in EST lands at 7:00 PM in GST, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +9h gap: EST and GST have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in GST is 6:00 PM in EST.
- Watching a live event or market open: EST viewers need 6:00 PM in GST to catch a 9:00 AM start there, and 3:00 PM if the event is anchored to EST.
- Always state the zone abbreviation, not just the hour. "3:00 PM EST" is unambiguous; "3 PM" across a +9h gap is not.
- With a +9h gap there is no shared 9-to-5 window, so alternate the early start: one week EST takes the early slot, the next week GST does.
About EST (Eastern Standard Time)
Eastern Standard Time (EST) is observed during the winter months in the eastern part of North America. It covers 23 US states and parts of Canada including Ontario and Quebec. EST is the most populous time zone in the United States, home to major financial centers like New York City and global organizations headquartered in Washington D.C. During daylight saving time (March–November), clocks shift to Eastern Daylight Time (EDT, UTC-04:00). The time zone also covers parts of the Caribbean and Central America including Panama, Jamaica, and the Cayman Islands.
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 EST and GST
With a +9h offset there is no overlap inside a normal 9 AM – 5 PM day. GST opens at 9:00 AM GST, which is 6:00 PM in EST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
EST and GST have no shared working hours because of the +9h gap. Teams need to alternate early starts or rely on asynchronous handovers.
EST is 9 hours ahead of GST (EST UTC-05:00 → GST UTC+04:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
EST
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 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 EST and GST?
EST (EST, UTC-05:00) is 9 hours ahead of GST (GST, UTC+04:00). The gap is currently +9h.
How do I convert EST time to GST time?
Add +9h to EST local time. For example, 9:00 AM in EST is 6:00 PM in GST.
What time is it in GST right now?
GST uses GST at UTC+04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +9h offset from EST.
What is the best time to call GST from EST?
There is no shared working-hours window because of the +9h gap. The closest option is 1:00 PM in EST, which is 10:00 PM in GST.
Which is ahead, EST or GST?
EST is 9 hours ahead of GST. When it is 12:00 PM in EST it is 9:00 PM in GST.
Does daylight saving time affect the EST–GST difference?
Neither zone observes daylight saving time, so the +9h offset between EST and GST is fixed all year.
Which other cities share EST's time zone?
EST also covers New York City, Washington D.C., Miami, Toronto, Philadelphia, Atlanta, Boston, Montreal and 8 more.
Which countries use EST, EST's zone?
EST is used in United States (Eastern), Canada (Ontario, Quebec), Mexico (Quintana Roo), Panama, Jamaica, Cayman Islands, Haiti, Bahamas and 4 more.
Is there a day difference between EST and GST?
Not normally. The +9h gap only pushes the date over for late-evening times.
What is the time difference between EST and GST?
GST is +9h from EST.
What timezone is EST in?
EST operates on its local timezone.
What timezone is GST in?
GST operates on its local timezone.
Which countries use EST (Eastern Standard Time)?
EST is used in United States (Eastern), Canada (Ontario, Quebec), Mexico (Quintana Roo), Panama, Jamaica, Cayman Islands, and 6 more countries.
Does EST observe daylight saving time?
Yes, EST switches to EDT during summer months.
What are some interesting facts about EST?
EST is the most widely used time zone in the United States by population. The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
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 EST, what time is it in GST?
When it is 12:00 AM (midnight) in EST (EST), it is +9h later in GST (GST).
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