GST to AST Time Converter
Use this GST to AST time converter to compare UAE and Gulf and Canada time instantly. AST is 8 hours behind GST, so 9:00 AM GST becomes 1:00 AM AST and 5:00 PM GST becomes 9:00 AM AST. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.
GST to AST Quick Facts
Use this GST to AST converter to compare UAE and Gulf and Canada time, check the 8 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 5:00 PM GST / 9:00 AM AST.
How to Convert GST to AST
Converting between Gulf Standard Time and Atlantic Standard Time means accounting for a 8 hours gap — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in Gulf Standard Time (UTC +4) that you want to convert. Hit "Now" to load the current GST time instantly, or use "+1h" to step forward and compare.
The equivalent Atlantic Standard Time (UTC -4) time appears immediately. Since AST is 8 hours behind of GST, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the AST result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — helpful for scheduling recurring UAE–Canada calls.
Why Choose Our GST to AST Converter
When someone in UAE suggests 5:00 PM GST, that's 9:00 AM AST. This converter shows the overlap so both sides agree on one slot — no back-and-forth.
Late-night GST times can land on a different date in AST because of the 8 hours offset. The converter labels "next day" or "previous day" next to the result so you never send a message a day early or miss a deadline.
Daylight Saving adjustments can widen or narrow the GST–AST gap by an hour. During transition weeks many people get it wrong. This converter pulls the current UTC offsets automatically, so the result is right even on the changeover day.
Product launches, sports matches, and webinars are often announced in GST. Convert the event time to AST so you know exactly when to tune in — with a 8 hours difference, a morning event in UAE hits the evening in Canada.
GST to AST Time Conversion Chart
Quick-reference conversion table covering every hour of the day at a glance.
Gulf Standard Time to Atlantic Standard Time full day schedule
| Gulf Standard Time | Atlantic Standard Time |
|---|---|
| 12:00 AM |
4:00 PM
(previous day)
|
| 1:00 AM |
5:00 PM
(previous day)
|
| 2:00 AM |
6:00 PM
(previous day)
|
| 3:00 AM |
7:00 PM
(previous day)
|
| 4:00 AM |
8:00 PM
(previous day)
|
| 5:00 AM |
9:00 PM
(previous day)
|
| 6:00 AM |
10:00 PM
(previous day)
|
| 7:00 AM |
11:00 PM
(previous day)
|
| 8:00 AM |
12:00 AM
|
| 9:00 AM |
1:00 AM
|
| 10:00 AM |
2:00 AM
|
| 11:00 AM |
3:00 AM
|
| 12:00 PM |
4:00 AM
|
| 1:00 PM |
5:00 AM
|
| 2:00 PM |
6:00 AM
|
| 3:00 PM |
7:00 AM
|
| 4:00 PM |
8:00 AM
|
| 5:00 PM |
9:00 AM
|
| 6:00 PM |
10:00 AM
|
| 7:00 PM |
11:00 AM
|
| 8:00 PM |
12:00 PM
|
| 9:00 PM |
1:00 PM
|
| 10:00 PM |
2:00 PM
|
| 11:00 PM |
3:00 PM
|
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Convert Other Time Zones to AST
Find the time difference from any major zone into Atlantic Standard Time. Use these pages when scheduling with Canada from a different region.