CAST
Casey Time
GMT +8

Time Difference

ChST (Chamorro Standard Time) is 2 hours ahead of Casey Time
11:30 pm23:30 in Guam Government House, Guam is 9:30 pm21:30 in CAST

Guam Government House to CAST call time
Best time for a conference call or a meeting is between 10am-6pm in Guam Government House which corresponds to 8am-4pm in CAST

11:30 pm23:30 ChST (Chamorro Standard Time) (Guam Government House, Guam). Offset UTC +10:00 hours
9:30 pm21:30 Casey Time (CAST). Offset UTC +8:00 hours

11:30 pm23:30 Guam Government House, Guam / 9:30 pm21:30 CAST

Guam Government House, Guam CAST
12am (midnight) 10pm
1am 11pm
2am 12am (midnight)
3am 1am
4am 2am
5am 3am
6am 4am
7am 5am
8am 6am
9am 7am
10am 8am
11am 9am
12pm (noon) 10am
1pm 11am
2pm 12pm (noon)
3pm 1pm
4pm 2pm
5pm 3pm
6pm 4pm
7pm 5pm
8pm 6pm
9pm 7pm
10pm 8pm
11pm 9pm
0:00 22:00
1:00 23:00
2:00 0:00
3:00 1:00
4:00 2:00
5:00 3:00
6:00 4:00
7:00 5:00
8:00 6:00
9:00 7:00
10:00 8:00
11:00 9:00
12:00 10:00
13:00 11:00
14:00 12:00
15:00 13:00
16:00 14:00
17:00 15:00
18:00 16:00
19:00 17:00
20:00 18:00
21:00 19:00
22:00 20:00
23:00 21:00

Guam Government House Information

Time Zone

Abbreviation / Name
ChST - Chamorro Standard Time
UTC / GMT Offset
+10:00 hours during Chamorro Standard Time, currently in use.

Guam Government House Facts

Country
Guam
Alternative Names
Designer Architect Richard Neutra
Currency
Dollar (USD)
Geographic Coordinates
13° 28' N Latitude / 144° 44' E Longitude

Casey Time

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

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 eight hour and zero minutes time differences 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