When does MDT begin and end each year?

MDT begins on the second Sunday in March when clocks spring forward one hour from MST, and concludes on the first Sunday in November when clocks return to standard time.

What major metropolitan areas observe MDT?

Cities observing MDT during summer include Denver, Salt Lake City, Boise, Albuquerque, Calgary, and Edmonton.

Is MDT the same time as Central Standard Time (CST)?

Yes. Both MDT and CST share the identical UTC-6 offset. MDT applies during summer in the Mountain zone, while CST applies during winter in the Central zone.

When does MDT begin and end each year?

MDT begins on the second Sunday in March when clocks spring forward one hour from MST, and concludes on the first Sunday in November when clocks return to standard time.

What major metropolitan areas observe MDT?

Cities observing MDT during summer include Denver, Salt Lake City, Boise, Albuquerque, Calgary, and Edmonton.

Is MDT the same time as Central Standard Time (CST)?

Yes. Both MDT and CST share the identical UTC-6 offset. MDT applies during summer in the Mountain zone, while CST applies during winter in the Central zone.

UTC -6MDTHorario de Verano Activo (Verano)

Mountain Daylight Time (MDT) Clock

What time is it in MDT right now? Live Mountain Daylight Time clock with seconds, UTC-6 offset, Denver and Salt Lake City tech hours, and DST dates.

10:23:16 AMMDT

Saturday, October 10, 2026

Día 283 de 2026 • Semana 41

Tu ubicación vs esta zona: 6 hours behind.

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Ciudades Principales en esta Zona

Relojes sincronizados en vivo

Análisis Cronométrico de la Zona Horaria

Live Mountain Daylight Time (UTC-6) Reference

Mountain Daylight Time (MDT, UTC-6) governs the Rocky Mountain corridor of the United States and Canada from March through November. Home to Silicon Slopes in Utah, aerospace hubs in Colorado, and energy headquarters in Alberta, MDT provides a key bridge between the Midwest and Pacific tech centers.

Our live clock synchronizes with atomic time servers to show running seconds without lag, making cross-country call scheduling and travel logistics effortless.

NIST Atomic Time Standards in Boulder, Colorado

Observancia oficial, coordinación de reuniones internacionales y estándares del huso Mountain Daylight Time (MDT).

Intermountain Tech Hubs and Regional Collaboration

Observancia oficial, coordinación de reuniones internacionales y estándares del huso Mountain Daylight Time (MDT).

Preguntas Frecuentes sobre la Zona Horaria Mountain Daylight Time (MDT)

Detalles esenciales del huso Mountain Daylight Time (MDT), cálculo de diferencias horarias y observaciones de horario de verano.

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Mountain Daylight Time (MDT) is the summer daylight saving schedule for the Rocky Mountain region, anchored to UTC-6 (6 hours behind Coordinated Universal Time).