MDT to San Juan, Puerto Rico Time Converter
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Selected conversion
6:00 am06:00 MDT (UTC-6), Oct 15, 2026 = 8:00 am08:00 AST (UTC-4), Oct 15, 2026
MDT is 2 hours behind San Juan.
How the time difference changes
For most of the year, MDT is 2 hours behind San Juan, Puerto Rico. From Nov 1, 2026 to Mar 14, 2027, MST is 3 hours behind San Juan, Puerto Rico.
For most of the year, working hours of 9:00 am to 6:00 pm in MDT correspond to 11:00 am to 8:00 pm in San Juan, Puerto Rico. At other times of the year, working hours of 9:00 am to 6:00 pm in MST correspond to 12:00 pm to 9:00 pm in San Juan, Puerto Rico.For most of the year, working hours of 09:00 to 18:00 in MDT correspond to 11:00 to 20:00 in San Juan, Puerto Rico. At other times of the year, working hours of 09:00 to 18:00 in MST correspond to 12:00 to 21:00 in San Juan, Puerto Rico.
Compare MDT time with San Juan time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Mountain Daylight Time is 2 hours behind AST (Atlantic Standard Time).
6:00 am06:00 in MDT is 8:00 am08:00 in San Juan, Puerto Rico
MDT to San Juan call time
Best time for a conference call or a meeting is between 9am-4pm09:00-16:00 in MDT which corresponds to 11am-6pm11:00-18:00 in San Juan
6:00 am06:00 Mountain Daylight Time (MDT). Offset UTC -6:00 hours
8:00 am08:00 AST (Atlantic Standard Time) (San Juan, Puerto Rico). Offset UTC -4:00 hours
6:00 am06:00 MDT / 8:00 am08:00 San Juan, Puerto Rico
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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 Calgary, Edmonton, Denver, El Paso.
French: HAR - Heure Avancée des Rocheuses
Spanish: MT - Zona Pacífico
Today all shaded areas are on MDT.
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).
Start: 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.
End: 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.
MDT representations, usage and related time zones
- -06 - basic short
- -0600 - basic
- -06:00 - extended
- -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.
- Sierra - Military abbreviation for MDT
- S - short form of 'Sierra'
- America/Boise
- America/Cambridge_Bay
- America/Ciudad_Juarez
- America/Denver
- America/Edmonton
- America/Inuvik
- America/Shiprock
- America/Yellowknife
- Canada/Mountain
- MST7MDT
- Navajo
- US/Mountain
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone