Geneva to Castle Rock time converter

Castle Rock is 8 hours behind Geneva. When it is 9:00 AM in Geneva, it is 1:00 AM in Castle Rock.

Geneva CEST

Wednesday, October 21, 2026

Castle Rock MDT

Wednesday, October 21, 2026

Geneva
Switzerland
Wed, Oct 21
CESTUTC+2
Castle Rock
Colorado, United States
Wed, Oct 21
MDTUTC-6-8h
Finding your time zone…
Shared working hours (9:00–18:00)

Geneva to Castle Rock conversion table

Every hour of today in Geneva and the matching time in Castle Rock. Light rows are typical working hours (9:00–18:00).

GenevaCastle Rock
12:00 AM4:00 PM−1 day
1:00 AM5:00 PM−1 day
2:00 AM6:00 PM−1 day
3:00 AM7:00 PM−1 day
4:00 AM8:00 PM−1 day
5:00 AM9:00 PM−1 day
6:00 AM10:00 PM−1 day
7:00 AM11:00 PM−1 day
8:00 AM12:00 AM
9:00 AM1:00 AM
10:00 AM2:00 AM
11:00 AM3:00 AM
12:00 PM4:00 AM
1:00 PM5:00 AM
2:00 PM6:00 AM
3:00 PM7:00 AM
4:00 PM8:00 AM
5:00 PM9:00 AM
6:00 PM10:00 AM
7:00 PM11:00 AM
8:00 PM12:00 PM
9:00 PM1:00 PM
10:00 PM2:00 PM
11:00 PM3:00 PM

Best time to call or meet

Both sides are at work from 5:00 PM – 6:00 PM in Geneva (9:00 AM – 10:00 AM in Castle Rock).

Daylight saving time and the difference

The difference changes during the year because Geneva and Castle Rock switch clocks on different dates:

  • Oct 21, 2026 – Oct 25, 2026: -8h
  • Oct 25, 2026 – Nov 1, 2026: -7h
  • Nov 1, 2026 – Mar 14, 2027: -8h
  • Mar 14, 2027 – Mar 28, 2027: -7h
  • Mar 28, 2027 – Oct 21, 2027: -8h

Distance

Geneva and Castle Rock are 8,291 km (5,152 miles) apart in a straight line.

More conversions

Castle Rock to GenevaGeneva to New YorkGeneva to LondonGeneva to Los AngelesGeneva to ChicagoGeneva to TorontoGeneva to São PauloGeneva to ParisGeneva to BerlinGeneva to MoscowGeneva to DubaiGeneva to New DelhiGeneva to Bangkok
New York to Castle RockLondon to Castle RockLos Angeles to Castle RockChicago to Castle RockToronto to Castle RockSão Paulo to Castle RockParis to Castle RockBerlin to Castle RockMoscow to Castle RockDubai to Castle RockNew Delhi to Castle RockBangkok to Castle Rock

Questions and answers

What is the time difference between Geneva and Castle Rock?

Castle Rock is 8 hours behind Geneva.

What time is it in Castle Rock when it is 9 AM in Geneva?

When it is 9:00 AM in Geneva, it is 1:00 AM in Castle Rock.

When is the best time to call Castle Rock from Geneva?

Both sides are at work from 5:00 PM – 6:00 PM in Geneva (9:00 AM – 10:00 AM in Castle Rock).

Does the time difference between Geneva and Castle Rock change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.