GST to ET Time Converter
ET is 8 hours behind GST. GST is UTC+4:00, and The US East Coast is currently on EDT (UTC-4:00).
Best Time to Call Between GST and ET
Standard 9-to-5 hours in these two zones never overlap, so someone has to take the call outside their working day. The most workable window is 3:00 PM to 10:00 PM GST, which is 7:00 AM to 2:00 PM ET.
both at work GST only ET only neither — hours along the strip are GST.
Common Times Converted
GST on the left, ET on the right.
GST to ET: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| GST | ET | Working hours |
|---|---|---|
| 12:00 AM | 4:00 PM prev day | ET only |
| 1:00 AM | 5:00 PM prev day | — |
| 2:00 AM | 6:00 PM prev day | — |
| 3:00 AM | 7:00 PM prev day | — |
| 4:00 AM | 8:00 PM prev day | — |
| 5:00 AM | 9:00 PM prev day | — |
| 6:00 AM | 10:00 PM prev day | — |
| 7:00 AM | 11:00 PM prev day | — |
| 8:00 AM | 12:00 AM | — |
| 9:00 AM | 1:00 AM | GST only |
| 10:00 AM | 2:00 AM | GST only |
| 11:00 AM | 3:00 AM | GST only |
| 12:00 PM | 4:00 AM | GST only |
| 1:00 PM | 5:00 AM | GST only |
| 2:00 PM | 6:00 AM | GST only |
| 3:00 PM | 7:00 AM | GST only |
| 4:00 PM | 8:00 AM | GST only |
| 5:00 PM | 9:00 AM | ET only |
| 6:00 PM | 10:00 AM | ET only |
| 7:00 PM | 11:00 AM | ET only |
| 8:00 PM | 12:00 PM | ET only |
| 9:00 PM | 1:00 PM | ET only |
| 10:00 PM | 2:00 PM | ET only |
| 11:00 PM | 3:00 PM | ET only |
What GST and ET Actually Are
GST — Gulf Standard Time
Dubai, Abu Dhabi, Sharjah, Muscat. Standing at UTC+4:00 as written, and the region does not change its clocks, so that offset holds all year. GST also refers to South Georgia Time (UTC-2), which you are very unlikely to want.
The Gulf states have never observed daylight saving, so Dubai's offset has been unchanged for decades — unusual stability for a region that grew as fast as it did.
ET — Eastern Time
New York, Toronto, Washington DC, Atlanta, Miami, Boston. Standing at UTC-5:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, November 1, 2026, to EST.
Eastern Time covers roughly half the US population and, because of that, is the zone most American business defaults to when nobody specifies one.
What This Means in Practice
This gap is not fixed
ET changes its clocks and GST does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, November 1, 2026 unless someone resets it.
Major Cities in Each Zone
Cities on GST
Cities on ET
Frequently Asked Questions
What is the time difference between GST and ET?
ET is 8 hours behind GST. That is the live figure. Taken strictly as written, the gap between GST and ET is 9 hours — the two differ because at least one of these regions is currently on daylight saving.
What is 9:00 AM GST in ET?
9:00 AM GST is 1:00 AM ET.
What are the best hours to schedule a call between GST and ET?
Standard business hours in these two zones do not overlap at all, so one side has to work outside the 9-to-5. The most workable window is 3:00 PM to 10:00 PM GST, which is 7:00 AM to 2:00 PM ET.
Does the difference between GST and ET change during the year?
Yes. ET observes daylight saving and GST does not, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, November 1, 2026.
Does GST always mean Gulf Standard Time?
GST also refers to South Georgia Time (UTC-2), which you are very unlikely to want.