Days in Potomac are currently getting shorter, about 18 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 Potomac
Potomac is located in the Northern Hemisphere and the Western Hemisphere. Its coordinates are 39.0182° N, 77.2086° W.
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Distance from the Equator:
about 4,344 km (2,699 mi)
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Distance from the North Pole:
about 5,675 km (3,526 mi)
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Distance from the South Pole:
about 14,362 km (8,924 mi)
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Distance from the Prime Meridian:
about 6,678 km (4,150 mi) west
Potomac 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 Potomac
The point on Earth exactly opposite Potomac is near Perth - when it's noon in Potomac, it's close to midnight there.
Golden Hour & Blue Hour in Potomac
Approximate times based on sunrise/sunset. Actual golden hour quality varies with weather and season.
Current Season in Potomac
Potomac is currently in Autumn. Autumn begins around September 22, which is 1 day from now.
Because Potomac 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 Potomac
In Potomac, the longest day of the year falls around June 21 and lasts about 14h 54m. The shortest day falls around December 21 and lasts about 9h 25m, a difference of roughly 5h 29m between the two.
This seasonal swing depends on Potomac's latitude: cities closer to the equator see little variation in daylight throughout the year, while cities farther from it, like Potomac at 39.02° N, experience a much wider gap between summer and winter daylight.
Population Ranking of Potomac
With a population of 44,965, Potomac ranks as the 1089th most populous city in United States, out of 3,397 cities tracked on this site.
Nearest Airport to Potomac
Washington Dulles International Airport (IAD / KIAD) is a major international airport located about 23 km (14 mi) from Potomac.
Current local time at the airport is 10:19:58.
Daylight saving time changes in Potomac
Potomac uses the IANA time zone identifier America/New_York. The current local offset is UTC-4 / EDT.
2026
Previous change: Daylight saving time started
- The offset changed from UTC-5 / EST to UTC-4 / EDT.
- 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-4 / EDT to UTC-5 / EST.
- The clock will be moved back from 02:00 to 01:00 local time.
Best Time to Call Potomac
Business hours in Potomac (9 AM-5 PM local time) fall at these local times elsewhere:
- Los Angeles: 6:00 AM - 2:00 PM ( Partial overlap)
- London: 2:00 PM - 10:00 PM ( Partial overlap)
- Dubai: 5:00 PM - 1:00 AM (next day) ( Partial overlap)
- Mumbai: 6:30 PM - 2:30 AM (next day) ( Partial overlap)
- Tokyo: 10:00 PM - 6:00 AM (next day) ( Outside normal hours)
- Sydney: 11:00 PM - 7:00 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 Potomac
Compare time in Potomac with major cities worldwide.
Time now in other cities in United States
Public Holidays Affecting Potomac
Official national holiday observed in United States.
Frequently Asked Questions
What time zone is Potomac in?
Potomac follows the America/New_York time zone, the official IANA identifier used by computers and databases worldwide to track local time accurately. Right now, this puts Potomac at UTC-4.
What time is it in Potomac right now?
The current local time in Potomac is 10:19:58 on Sunday, 20 September 2026. This page updates automatically, so refreshing it will always show the live time.
Does Potomac observe daylight saving time?
Yes. Potomac 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 Potomac?
Potomac is currently UTC-4, meaning local time is 4 hours behind Coordinated Universal Time (UTC).
What is the nearest airport to Potomac?
Washington Dulles International Airport (IAD) is the nearest airport to Potomac, located about 23 km away. The current local time at the airport is 10:19:58.
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