Boulder, CO, USA to SGT
Time Difference
MDT (Mountain Daylight Time) is 14 hours behind Singapore Time
3:30 pm15:30 in Boulder, CO, USA is 5:30 am05:30 in SGT
Boulder to SGT call time
Best time for a conference call or a meeting is between 6am-8am in Boulder which corresponds to 8pm-10pm in SGT
3:30 pm15:30 MDT (Mountain Daylight Time) (Boulder, CO, USA). Offset UTC -6:00 hours
5:30 am05:30 Singapore Time (SGT). Offset UTC +8:00 hours
3:30 pm15:30 Boulder, CO, USA / 5:30 am05:30 SGT
| Boulder, CO, USA | SGT |
|---|---|
| 12am (midnight) | 2pm |
| 1am | 3pm |
| 2am | 4pm |
| 3am | 5pm |
| 4am | 6pm |
| 5am | 7pm |
| 6am | 8pm |
| 7am | 9pm |
| 8am | 10pm |
| 9am | 11pm |
| 10am | 12am (midnight) |
| 11am | 1am |
| 12pm (noon) | 2am |
| 1pm | 3am |
| 2pm | 4am |
| 3pm | 5am |
| 4pm | 6am |
| 5pm | 7am |
| 6pm | 8am |
| 7pm | 9am |
| 8pm | 10am |
| 9pm | 11am |
| 10pm | 12pm (noon) |
| 11pm | 1pm |
| 0:00 | 14:00 |
| 1:00 | 15:00 |
| 2:00 | 16:00 |
| 3:00 | 17:00 |
| 4:00 | 18:00 |
| 5:00 | 19:00 |
| 6:00 | 20:00 |
| 7:00 | 21:00 |
| 8:00 | 22:00 |
| 9:00 | 23:00 |
| 10:00 | 0:00 |
| 11:00 | 1:00 |
| 12:00 | 2:00 |
| 13:00 | 3:00 |
| 14:00 | 4:00 |
| 15:00 | 5:00 |
| 16:00 | 6:00 |
| 17:00 | 7:00 |
| 18:00 | 8:00 |
| 19:00 | 9:00 |
| 20:00 | 10:00 |
| 21:00 | 11:00 |
| 22:00 | 12:00 |
| 23:00 | 13:00 |
Boulder Information
Time Zone
Abbreviation / Name
MDT - Mountain Daylight Time
HAR - Heure Avancée des Rocheuses
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.
-6:00 hours during Heure Avancée des Rocheuses.
Daylight Saving Time Change
0:00 hours - DST is in use
Daylight Saving Time Starts
Sunday, March 9, 2025 at 2:00 am local time. DST starts annually the on second Sunday of March. Clocks are turned forward 0 hour to Sunday, March 9, 2025, 3:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Sunday, November 2, 2025 at 2:00 am local time. DST ends annually the on first Sunday of November. Clocks are turned backward 0 hour to Sunday, November 2, 2025, 1:00 am local standard time instead. Also called Fall Back or switch to Winter Time.
Boulder Facts
Country
USA
State
Colorado
Alternative Names
Bolder, Boulder, Bouldur, WBU, ba'uldara, bo de, boldara, bolde xr, boldeo, boruda, bwldr, bwldr klradw, Болдер, Боулдер, Боулдър, בולדר, بولدر, بولدر، کلرادو, بولڈر، کولوراڈو, बाउल्डर, बोल्डर, โบลเดอร์, ボルダー, 波德, 볼더
Population
107,349
Currency
Dollar (USD)
Geographic Coordinates
40° 00' N Latitude / 105° 16' W Longitude
International Dialing Code
+1
Singapore Time
Offset: SGT is 8 hours ahead Greenwich Mean Time (GMT) and is used in Asia
SGT 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 SGT
- 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