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Convert Greenwich Mean Time (GMT) to Korea Standard Time (KST, UTC+9) for regional business calls. Free converter with real-time conversion, meeting time planner, and business hours comparison for London to Seoul 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.
Korea Standard Time is 9 hours ahead of Greenwich Mean Time
Complete hourly conversion for Greenwich Mean Time to Korea Standard Time
| Greenwich Mean Time | Korea Standard Time | 24-Hour GMT | 24-Hour KST |
|---|---|---|---|
| 12:00 AM | 9:00 AM | 00:00 | 09:00 |
| 1:00 AM | 10:00 AM | 01:00 | 10:00 |
| 2:00 AM | 11:00 AM | 02:00 | 11:00 |
| 3:00 AM | 12:00 PM | 03:00 | 12:00 |
| 4:00 AM | 1:00 PM | 04:00 | 13:00 |
| 5:00 AM | 2:00 PM | 05:00 | 14:00 |
| 6:00 AM | 3:00 PM | 06:00 | 15:00 |
| 7:00 AM | 4:00 PM | 07:00 | 16:00 |
| 8:00 AM | 5:00 PM | 08:00 | 17:00 |
| 9:00 AM | 6:00 PM | 09:00 | 18:00 |
| 10:00 AM | 7:00 PM | 10:00 | 19:00 |
| 11:00 AM | 8:00 PM | 11:00 | 20:00 |
| 12:00 PM | 9:00 PM | 12:00 | 21:00 |
| 1:00 PM | 10:00 PM | 13:00 | 22:00 |
| 2:00 PM | 11:00 PM | 14:00 | 23:00 |
| 3:00 PM | 12:00 AM (next day) | 15:00 | 00:00 |
| 4:00 PM | 1:00 AM (next day) | 16:00 | 01:00 |
| 5:00 PM | 2:00 AM (next day) | 17:00 | 02:00 |
| 6:00 PM | 3:00 AM (next day) | 18:00 | 03:00 |
| 7:00 PM | 4:00 AM (next day) | 19:00 | 04:00 |
| 8:00 PM | 5:00 AM (next day) | 20:00 | 05:00 |
| 9:00 PM | 6:00 AM (next day) | 21:00 | 06:00 |
| 10:00 PM | 7:00 AM (next day) | 22:00 | 07:00 |
| 11:00 PM | 8:00 AM (next day) | 23:00 | 08:00 |
Optimal hours for calls between GMT and KST
Based on standard business hours (9:00 AM - 6:00 PM) in each time zone
Technical information for both time zones
Source timezone
Target timezone
Korea Standard Time (KST) is 9 hours ahead of Greenwich Mean Time (GMT). To convert GMT to KST, you need to add 9 hours. For example, if it is noon in GMT, it will be 9:00 PM in KST.
When planning meetings between participants in GMT and KST, be mindful of the 9-hour difference. It’s advisable to schedule meetings during overlapping business hours; for example, if it’s convenient for participants in GMT from 9:00 AM to 5:00 PM, this translates to 6:00 PM to 2:00 AM in KST (the next day). This ensures that all parties can attend without conflicts.
Here are a few examples: If it’s 6:00 PM in GMT, it will be 3:00 AM in KST (the next day). If it’s 3:00 AM in GMT, it will be noon in KST. To manually convert, add 9 hours to your current GMT.
To manually convert GMT to KST, take your GMT and add 9 hours. For instance: If it’s 8:00 AM in GMT, adding 9 hours gives you 5:00 PM in KST. This method can be applied at any hour of the day.
No, daylight saving time does not affect this conversion. GMT remains constant throughout the year, while KST does not observe daylight saving time. Therefore, when converting from GMT to KST, you consistently add 9 hours.
