South Dakota, USA
MDT
CIST
Cook Islands Standard Time
GMT -10

Time Difference

MDT (Mountain Daylight Time) is 4 hours ahead of Cook Islands Standard Time
12:30 pm12:30 in Rapid City, SD, USA is 8:30 am08:30 in CIST

Rapid City to CIST call time
Best time for a conference call or a meeting is between 12pm-6pm in Rapid City which corresponds to 8am-2pm in CIST

12:30 pm12:30 MDT (Mountain Daylight Time) (Rapid City, SD, USA). Offset UTC -6:00 hours
8:30 am08:30 Cook Islands Standard Time (CIST). Offset UTC -10:00 hours

12:30 pm12:30 Rapid City, SD, USA / 8:30 am08:30 CIST

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

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

Cook Islands Standard Time

Offset: CIST is 10 hours behind Greenwich Mean Time (GMT) and is used in Pacific

CIST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -10 - basic short
  • -1000 - basic
  • -10:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -1000 - sign character (-) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates ten hour and zero minutes time differences to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Whiskey - Military abbreviation for CIST
  • W - short form of 'Whiskey'
Time zones with the GMT -10 offset:
  • HAST - Hawaii-Aleutian Standard Time
  • CKT - Cook Island Time
  • HST - Hawaii Standard Time
  • TAHT - Tahiti Time
  • W - Whiskey Time Zone