ustime.now — Frequently Asked Questions

Yes — free, no signup, no download.

Six across the states, plus Atlantic, Chamorro and Samoa time in the territories.

Hawaii and Arizona, with the exception of the Navajo Nation in Arizona, which does observe it.

Clocks go forward on the second Sunday in March and back on the first Sunday in November, both at 2:00 a.m. local time.

They read your device's own clock and your browser's time-zone data, so they are as accurate as your device and always current on daylight saving.

Six cover the states: Eastern, Central, Mountain, Pacific, Alaska and Hawaii–Aleutian. Adding the territories brings in Atlantic, Chamorro and Samoa time as well.

Three hours. New York is three hours ahead, so 3 p.m. Eastern is noon Pacific, and this holds year-round because both shift for daylight saving together.

Yes — every zone updates live from your device's clock and your browser's time-zone data, so daylight saving is already applied.

Because Arizona does not move its clocks. In summer Denver is on daylight time and runs an hour ahead of Phoenix; in winter they match.

The clock above shows the current offset. EDT applies from the second Sunday in March to the first Sunday in November; EST covers the rest of the year.

Most of the east coast plus Michigan, Ohio, most of Indiana and Kentucky, and the eastern portions of several split states.

One hour, always. Both zones shift for daylight saving on the same dates, so the gap never changes.

Chicago, Houston, Dallas, San Antonio, Minneapolis, New Orleans and Nashville among many others.

Arizona sits in the Mountain zone but does not observe daylight saving, so for half the year its clock matches Pacific time instead.

MST is UTC−07:00 and applies in winter; MDT is UTC−06:00 and applies during daylight saving.

The clock above shows the current offset. PDT runs from the second Sunday in March to the first Sunday in November; PST covers the rest.

Three hours, year-round, because both zones change for daylight saving on the same dates.

Yes — Alaska shifts on the same dates as the rest of the country, moving from AKST to AKDT.

No. Hawaii stays on Hawaii–Aleutian Standard Time all year, so the gap to the mainland changes when the mainland shifts.

Five hours in winter and six in summer, because Hawaii stays put while Eastern moves forward.

On the second Sunday in March at 2:00 a.m. local time, when clocks jump straight to 3:00 a.m.

On the first Sunday in November at 2:00 a.m. local time, when clocks return to 1:00 a.m.

Hawaii and Arizona, except for the Navajo Nation within Arizona, which does observe it. Most US territories also stay on standard time.

No. The switch happens at 2:00 a.m. in each local zone, so it sweeps westward across the country over several hours.