Question 1

What is the time difference between GST and EST?

Accepted Answer

Eastern Standard Time (EST) is 9 hours behind Gulf Standard Time (GST). Use the conversion table above to see the exact time for each hour.

Question 2

How do I convert GST to EST?

Accepted Answer

To convert GST to EST, subtract 9 hours from the GST time. For example, 9:00 AM GST is 12:00 AM EST.

Question 3

What time is it in EST when it's noon in GST?

Accepted Answer

When it's 12:00 PM (noon) in GST, it's 3:00 AM in EST. EST is 9 hours behind GST.

Question 4

How many hours behind is EST from GST?

Accepted Answer

EST is 9 hours behind GST. This means when it's 9:00 AM in GST, it's 12:00 AM in EST.

Question 5

Is EST ahead or behind GST?

Accepted Answer

EST is behind GST by 9 hours. Clocks in EST show an earlier time than GST.

Question 6

Does GST observe daylight saving time?

Accepted Answer

No, Gulf Standard Time does not observe daylight saving time. The UTC offset remains the same year-round.

Question 7

Does EST observe daylight saving time?

Accepted Answer

Yes, Eastern Standard Time observes daylight saving time. During DST, the abbreviation changes to EDT and clocks move forward by one hour.

Question 8

What is the best time to call from GST to EST?

Accepted Answer

The best time for a call between GST and EST is during overlapping business hours (9 AM – 5 PM) in both timezones. Check the color-coded conversion table above — green hours indicate business hours in both zones.

Question 9

When does daylight saving time change in EST?

Accepted Answer

Daylight saving time transitions vary by year and region. Eastern Standard Time observes DST, which typically shifts clocks forward by one hour in spring and back in fall. During DST transitions, the time difference between GST and EST may temporarily change. Check our DST change calendar for exact dates.

Question 10

Do GST and EST ever have the same time?

Accepted Answer

No, GST and EST never show the same time. However, because EST observes daylight saving time and GST does not, the time difference between them changes by one hour during DST transitions.

Gulf Standard Time (GST)	Period	Eastern Standard Time (EST)	Period
12:00 AM	Night	3:00 PM-1d	Business
1:00 AM	Night	4:00 PM-1d	Business
2:00 AM	Night	5:00 PM-1d	Business
3:00 AM	Night	6:00 PM-1d	Evening
4:00 AM	Night	7:00 PM-1d	Evening
5:00 AM	Night	8:00 PM-1d	Evening
6:00 AM	Morning	9:00 PM-1d	Evening
7:00 AM	Morning	10:00 PM-1d	Evening
8:00 AM	Morning	11:00 PM-1d	Evening
9:00 AM	Business	12:00 AM	Night
10:00 AM	Business	1:00 AM	Night
11:00 AM	Business	2:00 AM	Night
12:00 PM	Business	3:00 AM	Night
1:00 PM	Business	4:00 AM	Night
2:00 PM	Business	5:00 AM	Night
3:00 PM	Business	6:00 AM	Morning
4:00 PM	Business	7:00 AM	Morning
5:00 PM	Business	8:00 AM	Morning
6:00 PM	Evening	9:00 AM	Business
7:00 PM	Evening	10:00 AM	Business
8:00 PM	Evening	11:00 AM	Business
9:00 PM	Evening	12:00 PM	Business
10:00 PM	Evening	1:00 PM	Business
11:00 PM	Evening	2:00 PM	Business

GST to EST Converter

Timezone Details

24-Hour Overview

GST to EST Conversion Table

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