Puerto Rico to KST time conversion
KST is 13 hours ahead of Puerto Rico.
Time difference with your location
Puerto Rico is 4 hours behind UTC. Compare with your local time →
Choose a date and time
Choose the local time in Puerto Rico to convert it to KST on that date.
Skipped clock-change times are unavailable; a repeated time uses its first occurrence.
24-hour conversion chart · Puerto Rico → KST
This table converts each hour in Puerto Rico to KST on 2026-10-21.
- Working hours
- Outside working hours
- Night hours
| Puerto Rico | KST | Shared working hours |
|---|---|---|
| 00:0012:00 AM | 13:001:00 PM | |
| 01:001:00 AM | 14:002:00 PM | |
| 02:002:00 AM | 15:003:00 PM | |
| 03:003:00 AM | 16:004:00 PM | |
| 04:004:00 AM | 17:005:00 PM | |
| 05:005:00 AM | 18:006:00 PM | |
| 06:006:00 AM | 19:007:00 PM | |
| 07:007:00 AM | 20:008:00 PM | |
| 08:008:00 AM | 21:009:00 PM | |
| 09:009:00 AM | 22:0010:00 PM | |
| 10:0010:00 AM | 23:0011:00 PM | |
| 11:0011:00 AM | 00:0012:00 AM +1 day | |
| 12:0012:00 PM | 01:001:00 AM +1 day | |
| 13:001:00 PM | 02:002:00 AM +1 day | |
| 14:002:00 PM | 03:003:00 AM +1 day | |
| 15:003:00 PM | 04:004:00 AM +1 day | |
| 16:004:00 PM | 05:005:00 AM +1 day | |
| 17:005:00 PM | 06:006:00 AM +1 day | |
| 18:006:00 PM | 07:007:00 AM +1 day | |
| 19:007:00 PM | 08:008:00 AM +1 day | |
| 20:008:00 PM | 09:009:00 AM +1 day | |
| 21:009:00 PM | 10:0010:00 AM +1 day | |
| 22:0010:00 PM | 11:0011:00 AM +1 day | |
| 23:0011:00 PM | 12:0012:00 PM +1 day |
Quick conversion examples
These examples use Puerto Rico (UTC-4) and KST (UTC+9); choosing a date applies the local clock changes.
Conversion formula: KST = Puerto Rico + 13h.
| Puerto Rico | KST |
|---|---|
| 6:00 AM Puerto Rico | = 7:00 PM KST |
| 7:00 AM Puerto Rico | = 8:00 PM KST |
| 8:00 AM Puerto Rico | = 9:00 PM KST |
| 9:00 AM Puerto Rico | = 10:00 PM KST |
| 10:00 AM Puerto Rico | = 11:00 PM KST |
| 12:00 PM Puerto Rico | = 1:00 AM KST (+1 day) |
| 3:00 PM Puerto Rico | = 4:00 AM KST (+1 day) |
| 5:00 PM Puerto Rico | = 6:00 AM KST (+1 day) |
| 6:00 PM Puerto Rico | = 7:00 AM KST (+1 day) |
| 8:00 PM Puerto Rico | = 9:00 AM KST (+1 day) |
Overlapping meeting hours
The 08:00–18:00 working days in Puerto Rico and KST do not overlap on 2026-10-21.
Clock changes on both sides, 2026–2028
Puerto Rico and KST have the following local clock changes in 2026–2028; all times in the table are local to that side.
| Year | Puerto Rico | KST |
|---|---|---|
| 2026 | No clock changes; UTC-4 all year. | No clock changes; UTC+9 all year. |
| 2027 | No clock changes; UTC-4 all year. | No clock changes; UTC+9 all year. |
| 2028 | No clock changes; UTC-4 all year. | No clock changes; UTC+9 all year. |
The difference between Puerto Rico and KST stays constant throughout 2026–2028: KST is 13 hours ahead of Puerto Rico.
Frequently asked questions
What time is 9 AM Puerto Rico in KST?
9:00 AM Puerto Rico = 10:00 PM KST, using UTC-4 and UTC+9. Choose a date above for the seasonal local time.
Does the time difference between Puerto Rico and KST change during the year?
No. Throughout 2026–2028: KST is 13 hours ahead of Puerto Rico.
How do I tell whether it is day or night in KST?
Read the KST clock above: this guide counts 06:00–18:00 local time as daytime and the rest as nighttime, without using sunrise and sunset.
What is the best time to call between Puerto Rico and KST?
The 08:00–18:00 working days in Puerto Rico and KST do not overlap.
What is the time difference between Puerto Rico and KST now?
Right now, KST is 13 hours ahead of Puerto Rico. Conversion formula: KST = Puerto Rico + 13h.