Days in Casper are currently getting shorter, about 20 minutes shorter than a week ago.*
* Calculated from sunrise and sunset times; actual visible daylight can vary slightly with weather, elevation and atmospheric conditions.
Geographic position of Casper
Casper is located in the Northern Hemisphere and the Western Hemisphere. Its coordinates are 42.8666° N, 106.3131° W.
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Distance from the Equator:
about 4,772 km (2,965 mi)
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Distance from the North Pole:
about 5,247 km (3,260 mi)
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Distance from the South Pole:
about 14,791 km (9,191 mi)
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Distance from the Prime Meridian:
about 8,674 km (5,390 mi) west
Casper lies in the temperate latitude zone. This latitude affects daylight length, seasonal variation and how local solar time compares with standard clock time.
Antipode of Casper
The point on Earth exactly opposite Casper is near Toamasina - when it's noon in Casper, it's close to midnight there.
Golden Hour & Blue Hour in Casper
Approximate times based on sunrise/sunset. Actual golden hour quality varies with weather and season.
Current Season in Casper
Casper is currently in Autumn. Autumn begins around September 22, which is 1 day from now.
Because Casper is in the Northern Hemisphere, its seasons run opposite to cities in the other hemisphere. When it is autumn here, places on the other side of the equator are experiencing the opposite season at the same time.
Longest & Shortest Day in Casper
In Casper, the longest day of the year falls around June 21 and lasts about 15h 20m. The shortest day falls around December 21 and lasts about 9h 1m, a difference of roughly 6h 19m between the two.
This seasonal swing depends on Casper's latitude: cities closer to the equator see little variation in daylight throughout the year, while cities farther from it, like Casper at 42.87° N, experience a much wider gap between summer and winter daylight.
Population Ranking of Casper
With a population of 60,285, Casper ranks as the 754th most populous city in United States, out of 3,397 cities tracked on this site.
Airport in Casper
Casper-Natrona County International Airport (CPR / KCPR) is a regional airport serving Casper directly.
Current local time at the airport is 08:24:16.
Daylight saving time changes in Casper
Casper uses the IANA time zone identifier America/Denver. The current local offset is UTC-6 / MDT.
2026
Previous change: Daylight saving time started
- The offset changed from UTC-7 / MST to UTC-6 / MDT.
- The clock was moved forward from 02:00 to 03:00 local time.
2026
Next change: Standard time starts
- The offset will change from UTC-6 / MDT to UTC-7 / MST.
- The clock will be moved back from 02:00 to 01:00 local time.
Best Time to Call Casper
Business hours in Casper (9 AM-5 PM local time) fall at these local times elsewhere:
- New York: 11:00 AM - 7:00 PM ( Convenient)
- Los Angeles: 8:00 AM - 4:00 PM ( Convenient)
- London: 4:00 PM - 12:00 AM (next day) ( Partial overlap)
- Dubai: 7:00 PM - 3:00 AM (next day) ( Partial overlap)
- Mumbai: 8:30 PM - 4:30 AM (next day) ( Partial overlap)
- Tokyo: 12:00 AM (next day) - 8:00 AM (next day) ( Outside normal hours)
- Sydney: 1:00 AM (next day) - 9:00 AM (next day) ( Outside normal hours)
Times shown reflect current UTC offsets and may shift by up to an hour around daylight saving transitions.
Time Difference from Casper
Compare time in Casper with major cities worldwide.
Time now in other cities in United States
Public Holidays Affecting Casper
Official national holiday observed in United States.
Frequently Asked Questions
What time zone is Casper in?
Casper follows the America/Denver time zone, the official IANA identifier used by computers and databases worldwide to track local time accurately. Right now, this puts Casper at UTC-6.
What time is it in Casper right now?
The current local time in Casper is 08:24:16 on Sunday, 20 September 2026. This page updates automatically, so refreshing it will always show the live time.
Does Casper observe daylight saving time?
Yes. Casper is currently observing daylight saving time, which temporarily shifts the clock forward by one hour compared to standard time.
How far ahead or behind UTC is Casper?
Casper is currently UTC-6, meaning local time is 6 hours behind Coordinated Universal Time (UTC).
What is the nearest airport to Casper?
Casper-Natrona County International Airport (CPR) is the airport serving Casper. The current local time at the airport is 08:24:16.
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