Rapid City, SD, USA to ACT
Time Difference
MST (Mountain Standard Time) is 15 hours behind ASEAN Common Time
5:30 am05:30 in Rapid City, SD, USA is 8:30 pm20:30 in ACT
Rapid City to ACT call time
Best time for a conference call or a meeting is between 5:30am-7:30am in Rapid City which corresponds to 8:30pm-10:30pm in ACT
5:30 am05:30 MST (Mountain Standard Time) (Rapid City, SD, USA). Offset UTC -7:00 hours
8:30 pm20:30 ASEAN Common Time (ACT). Offset UTC +8:00 hours
5:30 am05:30 Rapid City, SD, USA / 8:30 pm20:30 ACT
| Rapid City, SD, USA | ACT |
|---|---|
| 12am (midnight) | 3pm |
| 1am | 4pm |
| 2am | 5pm |
| 3am | 6pm |
| 4am | 7pm |
| 5am | 8pm |
| 6am | 9pm |
| 7am | 10pm |
| 8am | 11pm |
| 9am | 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 |
| 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 | 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 |
Rapid City Information
Time Zone
Abbreviation / Name
MST - Mountain Standard Time
HAR - Heure Avancée des Rocheuses
HAR - Heure Avancée des Rocheuses
UTC / GMT Offset
-7:00 hours during Mountain Standard Time, currently in use.
-6:00 hours during Heure Avancée des Rocheuses.
-6:00 hours during Heure Avancée des Rocheuses.
Daylight Saving Time Change
+1:00 hour - DST is NOT in use
Daylight Saving Time Starts
Sunday, March 10, 2024 at 2:00 am local time. DST starts annually the on second Sunday of March. Clocks are turned forward 1 hour to Sunday, March 10, 2024, 3:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Sunday, November 3, 2024 at 2:00 am local time. DST ends annually the on first Sunday of November. Clocks are turned backward 1 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
ASEAN Common Time
Offset: ACT is 8 hours ahead Greenwich Mean Time (GMT) and is used in Asia
ACT 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 ACT
- 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