Days in Rockville 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 Rockville
Rockville is located in the Northern Hemisphere and the Western Hemisphere. Its coordinates are 39.0840° N, 77.1528° W.
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Distance from the Equator:
about 4,351 km (2,704 mi)
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Distance from the North Pole:
about 5,668 km (3,522 mi)
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Distance from the South Pole:
about 14,370 km (8,929 mi)
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Distance from the Prime Meridian:
about 6,667 km (4,143 mi) west
Rockville 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 Rockville
The point on Earth exactly opposite Rockville is near Perth - when it's noon in Rockville, it's close to midnight there.
Golden Hour & Blue Hour in Rockville
Approximate times based on sunrise/sunset. Actual golden hour quality varies with weather and season.
Current Season in Rockville
Rockville is currently in Autumn. Autumn begins around September 22, which is 1 day from now.
Because Rockville 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 Rockville
In Rockville, the longest day of the year falls around June 21 and lasts about 14h 55m. The shortest day falls around December 21 and lasts about 9h 25m, a difference of roughly 5h 30m between the two.
This seasonal swing depends on Rockville's latitude: cities closer to the equator see little variation in daylight throughout the year, while cities farther from it, like Rockville at 39.08° N, experience a much wider gap between summer and winter daylight.
Population Ranking of Rockville
With a population of 66,980, Rockville ranks as the 641st most populous city in United States, out of 3,397 cities tracked on this site.
Nearest Airport to Rockville
Ronald Reagan Washington National Airport (DCA / KDCA) is a major international airport located about 28 km (17 mi) from Rockville.
Current local time at the airport is 10:22:11.
Daylight saving time changes in Rockville
Rockville 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 Rockville
Business hours in Rockville (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 Rockville
Compare time in Rockville with major cities worldwide.
Time now in other cities in United States
Public Holidays Affecting Rockville
Official national holiday observed in United States.
Frequently Asked Questions
What time zone is Rockville in?
Rockville 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 Rockville at UTC-4.
What time is it in Rockville right now?
The current local time in Rockville is 10:22:11 on Sunday, 20 September 2026. This page updates automatically, so refreshing it will always show the live time.
Does Rockville observe daylight saving time?
Yes. Rockville 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 Rockville?
Rockville is currently UTC-4, meaning local time is 4 hours behind Coordinated Universal Time (UTC).
What is the nearest airport to Rockville?
Ronald Reagan Washington National Airport (DCA) is the nearest airport to Rockville, located about 28 km away. The current local time at the airport is 10:22:11.
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