Montevideo to Casper, WY: time difference
Casper, WY 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 15:29 3:29 PM Casper, WY 12:29 12:29 PM You –:–
15:29 3:29 PM
Uruguay Standard Time · UTC-3
☀️ 05:59 · 🌙 19:02
12:29 12:29 PM
Mountain Daylight Time · UTC-6
☀️ 07:23 · 🌙 18:19
·
−3 h
Casper, WY is 3 h behind Montevideo.
When you, Montevideo and Casper, WY 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
🇺🇸 Casper, WY
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
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Time zones side by side
| Detail | 🇺🇾 Montevideo | 🇺🇸 Casper, WY |
|---|---|---|
| Local time | 15:29 | 12:29 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 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 | 05:59 | 07:23 |
| Sunset | 19:02 | 18:19 |
| Daylight | 13 h 3 min | 10 h 57 min |
| People on this clock | 1,319,108 | 58,763 |
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 Casper, WY: common questions
How many hours behind Montevideo is Casper, WY?
The clocks in Casper are 3 hours behind those in Montevideo (UTC−6 and UTC−3).
What time is it in Casper, WY, when it is 9:00 AM in Montevideo?
When it is 9:00 AM in Montevideo, it is 6:00 AM in Casper.
If it is 6:00 PM in Montevideo, what time is it in Casper, WY?
At 6:00 PM in Montevideo, clocks in Casper show 3:00 PM.
When do working hours in Montevideo and in Casper, WY, 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 Casper.
When does the date change in Casper, WY, compared with Montevideo?
The new day starts in Casper later: until 3:00 AM in Montevideo, it is still the previous day there. From 9:00 PM in Casper, Montevideo is already on the next day.
Does the time difference between Montevideo and Casper, WY, change?
Yes. The clocks change only in Casper. From November 1, 2026, Casper will be 4 hours behind Montevideo.
