Montevideo to Castle Rock, CO: time difference
Castle Rock, CO is 3 h behind Montevideo. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Montevideo 15:59 3:59 PM Castle Rock, CO 12:59 12:59 PM You –:–
15:59 3:59 PM
Uruguay Standard Time · UTC-3
☀️ 06:10 · 🌙 18:55
12:59 12:59 PM
Mountain Daylight Time · UTC-6
☀️ 07:05 · 🌙 18:29
·
−3 h
Castle Rock, CO is 3 h behind Montevideo.
When you, Montevideo and Castle Rock, CO are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇾 Montevideo
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇺🇸 Castle Rock, CO
21 9 PM 22 10 PM 23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇾 Montevideo | 🇺🇸 Castle Rock, CO |
|---|---|---|
| Local time | 15:59 | 12:59 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Uruguay Standard Time | Mountain Daylight Time |
| UTC offset | UTC-3 | UTC-6 |
| Offset from Montevideo | — | −3 h |
| IANA zone | America/Montevideo | America/Denver |
| Daylight saving | Not observed | On summer time → UTC-7, Nov 1, 01:00 |
| Sunrise | 06:10 | 07:05 |
| Sunset | 18:55 | 18:29 |
| Daylight | 12 h 45 min | 11 h 25 min |
| People on this clock | 1,319,108 | 73,158 |
Compare Montevideo with another city
More comparisons with Montevideo: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Montevideo and Castle Rock, CO: common questions
What is the time difference between Montevideo and Castle Rock, CO?
Castle Rock is 3 hours behind: it uses UTC−6, while Montevideo is on UTC−3.
What time is it in Castle Rock, CO, when it is 9:00 AM in Montevideo?
When it is 9:00 AM in Montevideo, it is 6:00 AM in Castle Rock.
If it is 6:00 PM in Montevideo, what time is it in Castle Rock, CO?
At 6:00 PM in Montevideo, clocks in Castle Rock show 3:00 PM.
When do working hours in Montevideo and in Castle Rock, CO, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 12:00 PM to 6:00 PM in Montevideo, which is 9:00 AM to 3:00 PM in Castle Rock.
When does the date change in Castle Rock, CO, compared with Montevideo?
The new day starts in Castle Rock later: until 3:00 AM in Montevideo, it is still the previous day there. From 9:00 PM in Castle Rock, Montevideo is already on the next day.
Is the time difference between Montevideo and Castle Rock, CO, the same all year?
No. Only Castle Rock switches to summer time, so the gap changes twice a year. From November 1, 2026, Castle Rock will be 4 hours behind Montevideo.
