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Convert KST to AST Time - Free Time Zone Converter

Convert Korea Standard Time (KST) to Atlantic Standard Time (AST, UTC-4) for regional business calls. Free converter with real-time conversion, meeting time planner, and business hours comparison for KST to AST coordination. Includes 24-hour conversion table and live time displays. Perfect for international scheduling and global team collaboration. Works on all devices with accurate, reliable results.

🌍
KST
Korea Standard Time
Current Time
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🕐
AST
Atlantic Standard Time
Current Time
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Converted Time
Select a time to convert
Time Difference
-
Your Local Time
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UTC Time
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KST to AST Time Zone Difference

Atlantic Standard Time is 13 hours behind Korea Standard Time

Always up-to-date and accurate

24-Hour KST to AST Conversion Chart

Complete hourly conversion for Korea Standard Time to Atlantic Standard Time

12:00 AM
KST
11:00 AM
AST
(previous day)
00:00 11:00
1:00 AM
KST
12:00 PM
AST
(previous day)
01:00 12:00
2:00 AM
KST
1:00 PM
AST
(previous day)
02:00 13:00
3:00 AM
KST
2:00 PM
AST
(previous day)
03:00 14:00
4:00 AM
KST
3:00 PM
AST
(previous day)
04:00 15:00
5:00 AM
KST
4:00 PM
AST
(previous day)
05:00 16:00
6:00 AM
KST
5:00 PM
AST
(previous day)
06:00 17:00
7:00 AM
KST
6:00 PM
AST
(previous day)
07:00 18:00
8:00 AM
KST
7:00 PM
AST
(previous day)
08:00 19:00
9:00 AM
KST
8:00 PM
AST
(previous day)
09:00 20:00
10:00 AM
KST
9:00 PM
AST
(previous day)
10:00 21:00
11:00 AM
KST
10:00 PM
AST
(previous day)
11:00 22:00
12:00 PM
KST
11:00 PM
AST
(previous day)
12:00 23:00
1:00 PM
KST
12:00 AM
AST
13:00 00:00
2:00 PM
KST
1:00 AM
AST
14:00 01:00
3:00 PM
KST
2:00 AM
AST
15:00 02:00
4:00 PM
KST
3:00 AM
AST
16:00 03:00
5:00 PM
KST
4:00 AM
AST
17:00 04:00
6:00 PM
KST
5:00 AM
AST
18:00 05:00
7:00 PM
KST
6:00 AM
AST
19:00 06:00
8:00 PM
KST
7:00 AM
AST
20:00 07:00
9:00 PM
KST
8:00 AM
AST
21:00 08:00
10:00 PM
KST
9:00 AM
AST
22:00 09:00
11:00 PM
KST
10:00 AM
AST
23:00 10:00

Best Meeting Times between Korea Standard Time and Atlantic Standard Time

Optimal hours for calls between KST and AST

Compromise times recommended
7:00 AM KST → 6:00 PM (previous day) AST
Early Hours
8:00 AM KST → 7:00 PM (previous day) AST
Early Hours
6:00 PM KST → 5:00 AM AST
Evening

Based on standard business hours (9:00 AM - 6:00 PM) in each time zone

Time Zone Details

Technical information for both time zones

KST

Korea Standard Time

Source timezone

UTC Offset 9.0 hours
Abbreviation KST
Type Standard Time
Status Active
AST

Atlantic Standard Time

Target timezone

UTC Offset -4.0 hours
Abbreviation AST
Type Standard Time
Status Active

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