KST to UTC Time Converter

Korea Standard Time → Coordinated Universal Time

KST

UTC+9

Korea Standard Time

offset
-9h
UTC is 9h behind

UTC

UTC+0

Coordinated Universal Time

Korea Standard Time (KST) is 9 hours behind Coordinated Universal Time (UTC). When it is noon in KST, it is 3 AM in UTC. This offset is fixed year-round.

Best Meeting Times — KST & UTC

Recommended windows where both KST and UTC participants are within working hours (8 AM–6 PM).

KSTUTCRatingDetail page
5 PM
8 AM
Best
6 PM
9 AM
Best
4 PM
7 AM
Good
7 PM
10 AM
Good

Tip: When scheduling between KST and UTC, aim for the “Best” windows above. These times keep both parties within normal working hours, avoiding early-morning or late-evening fatigue.

Frequently Asked Questions — KST to UTC

Korea Standard Time (KST) is 9 hours behind Coordinated Universal Time (UTC). KST is UTC+9 and UTC is UTC+0.