Sun City to MDT Time Converter

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Sun City
Arizona, USAMST
UTC−7
12am
3am
6am
9am
12pm
3pm
6pm
9pm
MDT
Mountain Daylight Time
UTC−6
1h ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

5:00 am05:00 MST (UTC-7), Oct 29, 2026 = 6:00 am06:00 MDT (UTC-6), Oct 29, 2026

Sun City is 1 hour behind MDT.

How the time difference changes

For most of the year, Sun City is 1 hour behind MDT. From Nov 1, 2026 to Mar 14, 2027, Sun City and MST have the same time.

For most of the year, working hours of 9:00 am to 6:00 pm in Sun City correspond to 10:00 am to 7:00 pm in MDT. At other times of the year, working hours of 9:00 am to 6:00 pm in Sun City correspond to 9:00 am to 6:00 pm in MST.For most of the year, working hours of 09:00 to 18:00 in Sun City correspond to 10:00 to 19:00 in MDT. At other times of the year, working hours of 09:00 to 18:00 in Sun City correspond to 09:00 to 18:00 in MST.

Compare Sun City time with MDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

MST (Mountain Standard Time) is 1 hour behind Mountain Daylight Time.
5:00 am05:00 in Sun City, AZ, USA is 6:00 am06:00 in MDT

Sun City to MDT call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in Sun City which corresponds to 10am-6pm10:00-18:00 in MDT

5:00 am05:00 MST (Mountain Standard Time) (Sun City, AZ, USA). Offset UTC -7:00 hours
6:00 am06:00 Mountain Daylight Time (MDT). Offset UTC -6:00 hours

5:00 am05:00 Sun City, AZ, USA / 6:00 am06:00 MDT

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Hourly time comparison
Sun City, AZ, USAMDT
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Sun City Time Zone and Facts

Time Zone

Abbreviation / Offset
MST – Mountain Standard Time, UTC-7 (no daylight saving time)

Sun City Facts

Country
USA
State
Arizona
Alternative Names
Marinette, San Siti, San-Siti, Sun City, san syty aryzwna, sana siti, sanshiti, Сан Сити, Сан-Сіті, سان سیتی، آریزونا, सन सिटी, サンシティ
Population
37,499
Currency
Dollar (USD)
Geographic Coordinates
33° 35' N Latitude / 112° 16' W Longitude
International Dialing Code
+1
More About Sun City
Sun City local time and city facts

Mountain Daylight Time

Offset: MDT is 6 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Canada, Mexico, United States

Principal Cities: The largest city in the MDT time zone is Ciudad Juárez in Mexico, with about 1.512 million people. Other major cities in this time zone include Denver, El Paso, Albuquerque, Colorado Springs.

French: HAR - Heure Avancée des Rocheuses

Spanish: MT - Zona Pacífico

Map of the areas on Mountain Daylight Time (MDT)
MDT part of the year

Today all shaded areas are on MDT.

Open the world time zone map© OpenStreetMap

Daylight Saving: Mountain Daylight Time (MDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Mountain Standard Time (MST).

123456789101112Start: Mountain Daylight Time (MDT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.

123456789101112End: Mountain Daylight Time (MDT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.

See USA daylight saving time and upcoming clock changes worldwide.

MDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -06 - basic short
  • -0600 - basic
  • -06:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Sierra - Military abbreviation for MDT
  • S - short form of 'Sierra'
IANA/Olson: Reflects MDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Boise
  • America/Cambridge_Bay
  • America/Ciudad_Juarez
  • America/Denver
  • America/Edmonton
  • America/Inuvik
  • America/Shiprock
  • America/Yellowknife
  • Canada/Mountain
  • MST7MDT
  • Navajo
  • US/Mountain
Time zones with the GMT -6 offset:
  • CST - Central Standard Time
  • CT - Central Time
  • MDT - Mountain Daylight Time
  • EAST - Easter Island Standard Time
  • GALT - Galapagos Time
  • S - Sierra Time Zone