Boulder, CO, USA to Guyancourt, France
Time Difference
MST (Mountain Standard Time) is 8 hours behind CET (Central European Time)
7:00 am07:00 in Boulder, CO, USA is 3:00 pm15:00 in Guyancourt, France
Boulder to Guyancourt call time
Best time for a conference call or a meeting is between 8am-10am in Boulder which corresponds to 4pm-6pm in Guyancourt
7:00 am07:00 MST (Mountain Standard Time) (Boulder, CO, USA). Offset UTC -7:00 hours
3:00 pm15:00 CET (Central European Time) (Guyancourt, France). Offset UTC +1:00 hour
7:00 am07:00 Boulder, CO, USA / 3:00 pm15:00 Guyancourt, France
| Boulder, CO, USA | Guyancourt, France |
|---|---|
| 12am (midnight) | 8am |
| 1am | 9am |
| 2am | 10am |
| 3am | 11am |
| 4am | 12pm (noon) |
| 5am | 1pm |
| 6am | 2pm |
| 7am | 3pm |
| 8am | 4pm |
| 9am | 5pm |
| 10am | 6pm |
| 11am | 7pm |
| 12pm (noon) | 8pm |
| 1pm | 9pm |
| 2pm | 10pm |
| 3pm | 11pm |
| 4pm | 12am (midnight) |
| 5pm | 1am |
| 6pm | 2am |
| 7pm | 3am |
| 8pm | 4am |
| 9pm | 5am |
| 10pm | 6am |
| 11pm | 7am |
| 0:00 | 8:00 |
| 1:00 | 9:00 |
| 2:00 | 10:00 |
| 3:00 | 11:00 |
| 4:00 | 12:00 |
| 5:00 | 13:00 |
| 6:00 | 14:00 |
| 7:00 | 15:00 |
| 8:00 | 16:00 |
| 9:00 | 17:00 |
| 10:00 | 18:00 |
| 11:00 | 19:00 |
| 12:00 | 20:00 |
| 13:00 | 21:00 |
| 14:00 | 22:00 |
| 15:00 | 23:00 |
| 16:00 | 0:00 |
| 17:00 | 1:00 |
| 18:00 | 2:00 |
| 19:00 | 3:00 |
| 20:00 | 4:00 |
| 21:00 | 5:00 |
| 22:00 | 6:00 |
| 23:00 | 7:00 |
Boulder 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.
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
Guyancourt Information
Time Zone
Abbreviation / Name
CET - Central European Time
CEST - Central European Summer Time
CEST - Central European Summer Time
UTC / GMT Offset
+1:00 hour during Central European Time, currently in use.
+2:00 hours during Central European Summer Time.
+2:00 hours during Central European Summer Time.
Daylight Saving Time Change
+1:00 hour - DST is NOT in use
Daylight Saving Time Starts
Sunday, March 31, 2024 at 2:00 am local time. DST starts annually the on last Sunday of March. Clocks are turned forward 1 hour to Sunday, March 31, 2024, 3:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Sunday, October 27, 2024 at 3:00 am local time. DST ends annually the on last Sunday of October. Clocks are turned backward 1 hour to Sunday, October 27, 2024, 2:00 am local standard time instead. Also called Fall Back or switch to Winter Time.
Guyancourt Facts
Country
France
Alternative Names
Gijankur, Gjujankur, Guyancourt, giangkuleu, gwyankwr, gyuiyankuru, ji yang gu er, Гиянкур, Гијанкур, Гюйанкур, Гіянкур, گویانکور, ギュイヤンクール, 基揚古爾, 기앙쿠르
Population
31,989
Currency
Euro (EUR)
Geographic Coordinates
48° 46' N Latitude / 2° 04' E Longitude
International Dialing Code
+33