Does the United States observe daylight saving time?

Most US states observe DST — clocks spring forward at 2 AM on the second Sunday in March and fall back at 2 AM on the first Sunday in November. Arizona (except the Navajo Nation) and Hawaii do not observe DST and stay on a fixed UTC offset year-round.

What is the time difference between New York and Los Angeles?

New York (ET) is always 3 hours ahead of Los Angeles (PT) year-round. Both cities observe DST on the same schedule. New York to Chicago = 1 hour, New York to Denver = 2 hours, New York to Honolulu = 5 hours (fixed).

Actualizado en marzo de 2026

Current Time in United States

Q: What time is it in United States right now?

United States spans 4 timezones: CST, EST, MST, PST. Use the live clocks on this page for the exact local time in each major city.

Q: When is the best time to call someone in United States?

Aim for 9:00 AM to 5:00 PM local time in the specific city you are calling. Because United States spans 4 timezones, the right call window depends on the city, not just the country. Use the Best Time to Call calculator for an exact overlap window.

Live clocks for every United States city — UTC offsets, DST status, and inter-city time gaps.

, Estados Unidos

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PST horario de verano observado

Detalles completos

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La estructura de zona horaria de este país.

The US mainland — five continental timezones + DST

The US mainland covers four timezones (Eastern, Central, Mountain, Pacific), with Alaska adding a fifth and Hawaii a sixth. DST is nearly universal — observed from mid-March to early November — except in Arizona (no DST) and Hawaii (no DST). Multi-office US corporations default to Eastern Time for shared calendars regardless of headquarters, so "10 AM ET / 9 AM CT / 8 AM MT / 7 AM PT" is the standard four-way notation on internal meeting invites.

Contexto regional

Zonas horarias en América del Norte

América del Norte tiene cinco zonas horarias continentales de EE. UU. (Este, Central, Montaña, Pacífico, Alaska) más Terranova (una diferencia de 30 minutos con respecto a la hora del Atlántico, una de las pocas zonas horarias de 30 minutos fuera de Asia). El horario de verano es casi universal (excepto Arizona, Hawái y la mayor parte de Saskatchewan) y se extiende de marzo a noviembre. La programación comercial se realiza de forma predeterminada en el Este para corporaciones estadounidenses con varias oficinas, independientemente de la sede.

United States Cities by Timezone

4 timezones · 14 cities · live times

EST 5 PST 4 CST 3 MST 2

EST

5 cities

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PST

4 cities

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CST

3 cities

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MST

2 cities

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Las diferencias horarias pueden cambiar según la temporada cuando las ciudades observan diferentes horarios de verano.

Preguntas frecuentes

Timezones, DST rules, and scheduling in United States

What time is it in United States right now?

United States spans 4 timezones — CST, EST, MST, PST — so there is no single answer. The live clocks above show the exact time in , , , , , .

How many timezones does United States have?

United States uses 4 timezones: CST, EST, MST, PST. Not all regions change clocks on the same schedule — check the DST badge next to each city clock for the current status.

Does United States observe daylight saving time?

Most US states spring forward at 2:00 AM on the second Sunday in March and fall back at 2:00 AM on the first Sunday in November. Two exceptions: Arizona stays on Mountain Standard Time (UTC−7) year-round with no DST. Hawaii stays on HST (UTC−10) year-round. The Navajo Nation within Arizona does follow DST.

When is the best time to call someone in United States?

Aim for 9:00 AM – 5:00 PM local time in the specific city. Because United States spans 4 timezones, the overlap window from your location differs between cities. Open any city page above for its full scheduling guide.

¿Qué precisión tienen los relojes en vivo en esta página?

Todos los relojes se actualizan cada segundo utilizando el motor de zona horaria de su navegador y las reglas de horario de verano actuales se aplican automáticamente. Las horas mostradas coinciden con la hora local oficial de cada ciudad; no es necesario actualizarlas manualmente.

Scheduling a Call to United States?

Find the exact overlap between your working hours and any United States city.

Encuentre el mejor horario para reunirse

Time Conversions From United States

Planifique llamadas y reuniones en todas las zonas horarias de Estados Unidos: conversiones rápidas de la hora local a los destinos comerciales más comunes.

CST → IST

Convert CST time to IST — for United States scheduling.

CST → EST

Convert CST time to EST — for United States scheduling.

CST → PST

Convert CST time to PST — for United States scheduling.

CST → GMT

Convert CST time to GMT — for United States scheduling.

EST → EST

Convert EST time to IST — for United States scheduling.

EST → PST

Convierta la hora EST a PST para programación en Estados Unidos.