Updating current time…
CAST
Casey Time
GMT +8
12am
3am
6am
9am
12pm
3pm
6pm
9pm
KST
Pyongyang Time
GMT +8:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
KST is not used on this date
This converter keeps KST at GMT +8:30. Pyongyang uses GMT+9 (GMT +9) on this date. Choose Pyongyang, Hamhung, or Nampo for city-specific time.

Quick answers

CAST is 30 minutes behind KST Pyongyang year-round.

Working hours of 9:00 am to 5:00 pm in CAST correspond to 9:30 am to 5:30 pm in KST Pyongyang.

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

Time Difference

Casey Time is 0 hours and 30 minutes behind Pyongyang Time
8:00 pm20:00 in CAST is 8:30 pm20:30 in KST

CAST to KST call time
Best time for a conference call or a meeting is between 9am-4:30pm in CAST which corresponds to 9:30am-5pm in KST

8:00 pm20:00 Casey Time (CAST). Offset UTC +8:00 hours
8:30 pm20:30 Pyongyang Time (KST). Offset UTC +8:30 hours

8:00 pm20:00 CAST / 8:30 pm20:30 KST

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

Casey Time

Offset: CAST is 8 hours ahead Greenwich Mean Time (GMT) and is used in Antarctica

Countries using this time zone: Antarctica

Daylight Saving: Clocks in Casey Time (CAST) do not change for daylight saving time, so CAST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

CAST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +08 - basic short
  • +0800 - basic
  • +08:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0800 - sign character (+) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Hotel - Military abbreviation for CAST
  • H - short form of 'Hotel'
Time zones with the GMT +8 offset:
  • ACT - ASEAN Common Time
  • AWST - Australian Western Standard Time
  • BNT - Brunei Darussalam Time
  • CAST - Casey Time
  • CHOT - Choibalsan Time
  • CST - China Standard Time
  • H - Hotel Time Zone
  • HKT - Hong Kong Time
  • HOVST - Hovd Summer Time
  • IRKT - Irkutsk Time
  • KRAST - Krasnoyarsk Summer Time
  • MYT - Malaysia Time
  • PHT - Philippine Time
  • SGT - Singapore Time
  • ULAT - Ulaanbaatar Time
  • WITA - Central Indonesian Time

Pyongyang Time

Offset: KST is 8 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia

KST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0830 - basic
  • +08:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0830 - sign character (+) followed by a four digit time providing hours (08) and minutes (30) of the offset. Indicates an offset of eight hours and thirty minutes to the east of the zero meridian.
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