About

America Time Now is an independent reference for the current time in the United States. It covers all 50 states, Washington, D.C., the five inhabited territories and the largest U.S. cities.

Where the time comes from

Clocks follow the IANA time zone database, the public record of time zone and daylight saving rules used by operating systems worldwide. When a page loads, the clock is checked against our server so that it stays correct even if your device clock is wrong.

Other data

Sunrise and sunset times are calculated from each location's coordinates using standard astronomical formulas. Weather conditions come from the U.S. National Weather Service. Federal holidays and daylight saving dates follow the rules set in federal law.

Independence

America Time Now is not affiliated with any government agency. The official U.S. time is published by the National Institute of Standards and Technology and the U.S. Naval Observatory at time.gov.