AST to EDT Time Converter
Use this AST to EDT time converter to compare Canada and US East Coast time instantly. EDT is 0 hours equal to AST, so 9:00 AM AST becomes 9:00 AM EDT and 5:00 PM AST becomes 5:00 PM EDT. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.
AST to EDT Quick Facts
Use this AST to EDT converter to compare Canada and US East Coast time, check the 0 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM AST / 9:00 AM EDT.
How to Convert AST to EDT
Converting between Atlantic Standard Time and Eastern Daylight Time means no offset adjustment — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in Atlantic Standard Time (UTC -4) that you want to convert. Hit "Now" to load the current AST time instantly, or use "+1h" to step forward and compare.
The equivalent Eastern Daylight Time (UTC -4) time appears immediately. Since EDT is 0 hours behind of AST, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the EDT result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — useful when Daylight Saving Time changes the gap.
Why Choose Our AST to EDT Converter
When someone in Canada suggests 9:00 AM AST, that's 9:00 AM EDT. This converter shows the overlap so both sides agree on one slot — no back-and-forth.
Late-night AST times can land on a different date in EDT because of the 0 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 AST–EDT 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 AST. Convert the event time to EDT so you know exactly when to tune in — since both zones share the same offset, no conversion is needed but this tool confirms it instantly.
AST to EDT Time Conversion Chart
Quick-reference conversion table covering every hour of the day at a glance.
Atlantic Standard Time to Eastern Daylight Time full day schedule
| Atlantic Standard Time | Eastern Daylight Time |
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| 12:00 AM |
12:00 AM
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| 1:00 AM |
1:00 AM
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| 2:00 AM |
2:00 AM
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| 3:00 AM |
3:00 AM
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| 4:00 AM |
4:00 AM
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| 5:00 AM |
5:00 AM
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| 6:00 AM |
6:00 AM
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| 7:00 AM |
7:00 AM
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| 8:00 AM |
8:00 AM
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| 9:00 AM |
9:00 AM
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| 10:00 AM |
10:00 AM
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| 11:00 AM |
11:00 AM
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| 12:00 PM |
12:00 PM
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| 1:00 PM |
1:00 PM
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| 2:00 PM |
2:00 PM
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| 3:00 PM |
3:00 PM
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| 4:00 PM |
4:00 PM
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| 5:00 PM |
5:00 PM
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| 6:00 PM |
6:00 PM
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| 7:00 PM |
7:00 PM
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| 8:00 PM |
8:00 PM
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| 9:00 PM |
9:00 PM
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| 10:00 PM |
10:00 PM
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| 11:00 PM |
11:00 PM
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