KST to NST Converter
Quick answers
KST is 12 hours and 30 minutes ahead of NST. KST uses GMT +9, and NST uses GMT -3:30 for this comparison.
For example, 9:00 pm KST is 8:30 am NST. Use the converter above to adjust the date or time and create a shareable meeting link.
Best meeting overlap: 7am-8am KST, which is 6:30pm-7:30pm NST (previous day).
Compare KST time with NST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Korea Standard Time is 12 hours and 30 minutes ahead of Newfoundland Standard Time
9:00 pm21:00 in KST is 8:30 am08:30 in NST
KST to NST call time
Best time for a conference call or a meeting is between 7am-8am in KST which corresponds to 6:30pm-7:30pm in NST (previous day)
9:00 pm21:00 Korea Standard Time (KST). Offset UTC +9:00 hours
8:30 am08:30 Newfoundland Standard Time (NST). Offset UTC -3:30 hours
9:00 pm21:00 KST / 8:30 am08:30 NST
| KST | NST |
|---|---|
| 12am (midnight) | 11:30 am |
| 1am | 12:30 pm |
| 2am | 1:30 pm |
| 3am | 2:30 pm |
| 4am | 3:30 pm |
| 5am | 4:30 pm |
| 6am | 5:30 pm |
| 7am | 6:30 pm |
| 8am | 7:30 pm |
| 9am | 8:30 pm |
| 10am | 9:30 pm |
| 11am | 10:30 pm |
| 12pm (noon) | 11:30 pm |
| 1pm | 12:30 am |
| 2pm | 1:30 am |
| 3pm | 2:30 am |
| 4pm | 3:30 am |
| 5pm | 4:30 am |
| 6pm | 5:30 am |
| 7pm | 6:30 am |
| 8pm | 7:30 am |
| 9pm | 8:30 am |
| 10pm | 9:30 am |
| 11pm | 10:30 am |
| 00:00 | 11:30 |
| 01:00 | 12:30 |
| 02:00 | 13:30 |
| 03:00 | 14:30 |
| 04:00 | 15:30 |
| 05:00 | 16:30 |
| 06:00 | 17:30 |
| 07:00 | 18:30 |
| 08:00 | 19:30 |
| 09:00 | 20:30 |
| 10:00 | 21:30 |
| 11:00 | 22:30 |
| 12:00 | 23:30 |
| 13:00 | 00:30 |
| 14:00 | 01:30 |
| 15:00 | 02:30 |
| 16:00 | 03:30 |
| 17:00 | 04:30 |
| 18:00 | 05:30 |
| 19:00 | 06:30 |
| 20:00 | 07:30 |
| 21:00 | 08:30 |
| 22:00 | 09:30 |
| 23:00 | 10:30 |
Korea Standard Time
Offset: KST is 9 hours ahead Greenwich Mean Time (GMT) and is used in Asia
Countries using this time zone: Korea (North), Korea (South)
Principal Cities: The largest city in the KST time zone is Seoul in South Korea, with about 10.349 million people. Other major cities in this time zone include Busan, Pyongyang, Incheon, Daegu.
Daylight Saving: Clocks in Korea Standard Time (KST) do not change for daylight saving time, so KST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.
KST representations, usage and related time zones
- +09 - basic short
- +0900 - basic
- +09:00 - extended
- +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates an offset of nine hours to the east of the zero meridian.
- India - Military abbreviation for KST
- I - short form of 'India'
- Asia/Pyongyang
- Asia/Seoul
- ROK
- Korea Standard Time - UTC +9
- Pyongyang Time - UTC +8:30
- AWDT - Australian Western Daylight Time
- CHOST - Choibalsan Summer Time
- I - India Time Zone
- IRKST - Irkutsk Summer Time
- JST - Japan Standard Time
- KST - Korea Standard Time
- PWT - Palau Time
- TLT - East Timor Time
- ULAST - Ulaanbaatar Summer Time
- WIT - Eastern Indonesian Time
- YAKT - Yakutsk Time
Newfoundland Standard Time
Offset: NST is 3 hours and 30 minutes behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Canada
Principal Cities: The largest city in the NST time zone is St Johns in Canada, with about 99,182 people. Other major cities in this time zone include Mount Pearl, Corner Brook, Conception Bay South.
French: HNT - Heure Normale de Terre-Neuve
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Newfoundland Daylight Time (NDT).
Start: Newfoundland Standard Time (NST) started on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually on the first Sunday of November.
End: Newfoundland Standard Time (NST) ends on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am local daylight time instead. Standard time ends annually on the second Sunday of March.
NST representations, usage and related time zones
- -0330 - basic
- -03:30 - extended
- -0330 - sign character (-) followed by a four digit time providing hours (03) and minutes (30) of the offset. Indicates an offset of three hours and thirty minutes to the west of the zero meridian.
- America/St_Johns
- Canada/Newfoundland