Lima to Casper, WY: time difference
Casper, WY is 1 h behind Lima. 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.
Lima 11:00 11:00 AM Casper, WY 10:00 10:00 AM You –:–
11:00 11:00 AM
Peru Standard Time · UTC-5
☀️ 05:42 · 🌙 18:06
10:00 10:00 AM
Mountain Daylight Time · UTC-6
☀️ 07:23 · 🌙 18:19
·
−1 h
Casper, WY is 1 h behind Lima.
When you, Lima 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
🇵🇪 Lima
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
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 21 9 PM 22 10 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇪 Lima | 🇺🇸 Casper, WY |
|---|---|---|
| Local time | 11:00 | 10:00 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Peru Standard Time | Mountain Daylight Time |
| UTC offset | UTC-5 | UTC-6 |
| Offset from Lima | — | −1 h |
| IANA zone | America/Lima | America/Denver |
| Daylight saving | Not observed | On summer time → UTC-7, Nov 1, 01:00 |
| Sunrise | 05:42 | 07:23 |
| Sunset | 18:06 | 18:19 |
| Daylight | 12 h 24 min | 10 h 57 min |
| People on this clock | 9,989,369 | 58,763 |
Compare Lima with another city
More comparisons with Lima: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Lima and Casper, WY: common questions
What is the time difference between Lima and Casper, WY?
Casper is 1 hour behind: it uses UTC−6, while Lima is on UTC−5.
If it is 9:00 AM in Lima, what time is it in Casper, WY?
At 9:00 AM in Lima, clocks in Casper show 8:00 AM.
If it is 6:00 PM in Lima, what time is it in Casper, WY?
At 6:00 PM in Lima, clocks in Casper show 5:00 PM.
Is there a time when both Lima and Casper, WY, are at work?
Yes: from 10:00 AM to 6:00 PM in Lima (9:00 AM to 5:00 PM in Casper), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Casper, WY, compared with Lima?
The new day starts in Casper later: until 1:00 AM in Lima, it is still the previous day there. From 11:00 PM in Casper, Lima is already on the next day.
Is the time difference between Lima and Casper, WY, the same all year?
No. Only Casper switches to summer time, so the gap changes twice a year. From November 1, 2026, Casper will be 2 hours behind Lima.
