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NST to KST Converter

NST
Newfoundland Standard Time
GMT -3:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
KST
Korea Standard Time
GMT +9
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

NST is 12 hours and 30 minutes behind KST. NST uses GMT -3:30, and KST uses GMT +9 for this comparison.

For example, 8:30 am NST is 9:00 pm KST. Use the converter above to adjust the date or time and create a shareable meeting link.

Best meeting overlap: 6:30pm-7:30pm NST, which is 7am-8am KST (next day).

Compare NST time with KST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Newfoundland Standard Time is 12 hours and 30 minutes behind Korea Standard Time
8:30 am08:30 in NST is 9:00 pm21:00 in KST

NST to KST call time
Best time for a conference call or a meeting is between 6:30pm-7:30pm in NST which corresponds to 7am-8am in KST (next day)

8:30 am08:30 Newfoundland Standard Time (NST). Offset UTC -3:30 hours
9:00 pm21:00 Korea Standard Time (KST). Offset UTC +9:00 hours

8:30 am08:30 NST / 9:00 pm21:00 KST

NSTKST
12am (midnight)12:30 pm
1am1:30 pm
2am2:30 pm
3am3:30 pm
4am4:30 pm
5am5:30 pm
6am6:30 pm
7am7:30 pm
8am8:30 pm
9am9:30 pm
10am10:30 pm
11am11:30 pm
12pm (noon)12:30 am
1pm1:30 am
2pm2:30 am
3pm3:30 am
4pm4:30 am
5pm5:30 am
6pm6:30 am
7pm7:30 am
8pm8:30 am
9pm9:30 am
10pm10:30 am
11pm11:30 am
00:0012:30
01:0013:30
02:0014:30
03:0015:30
04:0016:30
05:0017:30
06:0018:30
07:0019:30
08:0020:30
09:0021:30
10:0022:30
11:0023:30
12:0000:30
13:0001:30
14:0002:30
15:0003:30
16:0004:30
17:0005:30
18:0006:30
19:0007:30
20:0008:30
21:0009:30
22:0010:30
23:0011:30

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

NST Time Zone Geo Map
NST timezone map

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).

Daylight saving time clock moves back for one hour from 2am to 1amStart: 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.

Daylight saving time clock moves forward for one hour from 2am to 3amEnd: 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

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -0330 - basic
  • -03:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -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.
IANA/Olson: Reflects NST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/St_Johns
  • Canada/Newfoundland

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 Time Zone Geo Map
KST timezone map

KST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +09 - basic short
  • +0900 - basic
  • +09:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • India - Military abbreviation for KST
  • I - short form of 'India'
IANA/Olson: Reflects KST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Pyongyang
  • Asia/Seoul
  • ROK
KST Abbreviation: Several time zones share KST abbreviation and it could refer to these time zones
  • Korea Standard Time - UTC +9
  • Pyongyang Time - UTC +8:30
Time zones with the GMT +9 offset:
  • 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
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT