AST to KST Time Converter
Use this AST to KST time converter to compare Canada and South Korea time instantly. KST is 13 hours ahead of AST, so 9:00 AM AST becomes 10:00 PM KST and 5:00 PM AST becomes 6:00 AM (next day) KST. 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 KST Quick Facts
Use this AST to KST converter to compare Canada and South Korea time, check the 13 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Find the best overlap for calls and meetings.
How to Convert AST to KST
Converting between Atlantic Standard Time and Korea Standard Time means accounting for a 13 hours gap — 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 Korea Standard Time (UTC +9) time appears immediately. Since KST is 13 hours ahead of AST, conversions often cross midnight — look for the date-change label.
Click "Copy Time" to grab the KST result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — helpful for scheduling recurring Canada–South Korea calls.
Why Choose Our AST to KST Converter
With 13 hours between AST and KST, business-hours overlap is limited. This tool instantly shows which hours work on both sides, so you can lock in a meeting without a chain of "does 3 PM work for you?" emails.
A AST evening at 9 PM is already the next morning in KST. This converter flags date changes beside the result — critical when booking flights, hitting deadlines, or scheduling across the Canada–South Korea corridor.
Daylight Saving adjustments can widen or narrow the AST–KST 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 KST so you know exactly when to tune in — with a 13 hours difference, a morning event in Canada falls during work hours in South Korea.
AST to KST Time Conversion Chart
Quick-reference conversion table covering every hour of the day at a glance.
Atlantic Standard Time to Korea Standard Time full day schedule
| Atlantic Standard Time | Korea Standard Time |
|---|---|
| 12:00 AM |
1:00 PM
|
| 1:00 AM |
2:00 PM
|
| 2:00 AM |
3:00 PM
|
| 3:00 AM |
4:00 PM
|
| 4:00 AM |
5:00 PM
|
| 5:00 AM |
6:00 PM
|
| 6:00 AM |
7:00 PM
|
| 7:00 AM |
8:00 PM
|
| 8:00 AM |
9:00 PM
|
| 9:00 AM |
10:00 PM
|
| 10:00 AM |
11:00 PM
|
| 11:00 AM |
12:00 AM
(next day)
|
| 12:00 PM |
1:00 AM
(next day)
|
| 1:00 PM |
2:00 AM
(next day)
|
| 2:00 PM |
3:00 AM
(next day)
|
| 3:00 PM |
4:00 AM
(next day)
|
| 4:00 PM |
5:00 AM
(next day)
|
| 5:00 PM |
6:00 AM
(next day)
|
| 6:00 PM |
7:00 AM
(next day)
|
| 7:00 PM |
8:00 AM
(next day)
|
| 8:00 PM |
9:00 AM
(next day)
|
| 9:00 PM |
10:00 AM
(next day)
|
| 10:00 PM |
11:00 AM
(next day)
|
| 11:00 PM |
12:00 PM
(next day)
|
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Convert Other Time Zones to KST
Find the time difference from any major zone into Korea Standard Time. Use these pages when scheduling with South Korea from a different region.