CAST
Casey Time
GMT +8
South Dakota, USA
MDT

Time Difference

Casey Time is 14 hours ahead of MDT (Mountain Daylight Time)
10:00 am10:00 in CAST is 8:00 pm20:00 in Rapid City, SD, USA

CAST to Rapid City call time
Best time for a conference call or a meeting is between 8pm-10pm in CAST which corresponds to 6am-8am in Rapid City

10:00 am10:00 Casey Time (CAST). Offset UTC +8:00 hours
8:00 pm20:00 MDT (Mountain Daylight Time) (Rapid City, SD, USA). Offset UTC -6:00 hours

10:00 am10:00 CAST / 8:00 pm20:00 Rapid City, SD, USA

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

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

Rapid City Information

Time Zone

Abbreviation / Name
MDT - Mountain Daylight Time
HAR - Heure Avancée des Rocheuses
UTC / GMT Offset
-6:00 hours during Mountain Daylight Time, currently in use.
-6:00 hours during Heure Avancée des Rocheuses.
Daylight Saving Time Change
0:00 hours - DST is in use
Daylight Saving Time Starts
Daylight saving time clock moves forward for one hour from 2am to 3am Sunday, March 10, 2024 at 2:00 am local time. DST starts annually the on second Sunday of March. Clocks are turned forward 0 hour to Sunday, March 10, 2024, 3:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Daylight saving time clock moves back for one hour from 2am to 1am Sunday, November 3, 2024 at 2:00 am local time. DST ends annually the on first Sunday of November. Clocks are turned backward 0 hour to Sunday, November 3, 2024, 1:00 am local standard time instead. Also called Fall Back or switch to Winter Time.

Rapid City Facts

Country
USA
State
South Dakota
Alternative Names
Haeohemahpe, Hay Camp, Háeohémahpe, RAP, Rapid, Rapid City, Rapid Siti, Rapid-Siti, la pi de cheng, laepideusiti, rabyd syty, raipida siti, rapiddoshiti, rpyd syty dakwtay jnwby, Рапид Сити, Рапид-Сити, Рапід-Сіті, رابيد سيتي, رپید سیتی، داکوتای جنوبی, ریپڈ سٹی، جنوبی ڈکوٹا, रैपिड सिटी, แรพิดซิตี, ラピッドシティ, 拉皮德城, 래피드시티
Population
73,569
Currency
Dollar (USD)
Geographic Coordinates
44° 04' N Latitude / 103° 13' W Longitude
International Dialing Code
+1