Buenos Aires to MST to CST to PST to EST Time Converter
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Quick answers
Selected conversion
9:00 am09:00 ART (UTC-3), Nov 8, 2026 = 5:00 am05:00 MST (UTC-7), Nov 8, 2026 = 6:00 am06:00 CST (UTC-6), Nov 8, 2026 = 4:00 am04:00 PST (UTC-8), Nov 8, 2026 = 7:00 am07:00 EST (UTC-5), Nov 8, 2026
Buenos Aires is 4 hours ahead of MST. Buenos Aires is 3 hours ahead of CST. Buenos Aires is 5 hours ahead of PST. Buenos Aires is 2 hours ahead of EST.
How the time difference changes
Buenos Aires to MST
For most of the year, Buenos Aires is 3 hours ahead of MDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, Buenos Aires is 4 hours ahead of MST.
For most of the year, working hours of 9:00 am to 6:00 pm in Buenos Aires correspond to 6:00 am to 3:00 pm in MDT. At other times of the year, working hours of 9:00 am to 6:00 pm in Buenos Aires correspond to 5:00 am to 2:00 pm in MST.For most of the year, working hours of 09:00 to 18:00 in Buenos Aires correspond to 06:00 to 15:00 in MDT. At other times of the year, working hours of 09:00 to 18:00 in Buenos Aires correspond to 05:00 to 14:00 in MST.
Buenos Aires to CST
For most of the year, Buenos Aires is 2 hours ahead of CDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, Buenos Aires is 3 hours ahead of CST.
For most of the year, working hours of 9:00 am to 6:00 pm in Buenos Aires correspond to 7:00 am to 4:00 pm in CDT. At other times of the year, working hours of 9:00 am to 6:00 pm in Buenos Aires correspond to 6:00 am to 3:00 pm in CST.For most of the year, working hours of 09:00 to 18:00 in Buenos Aires correspond to 07:00 to 16:00 in CDT. At other times of the year, working hours of 09:00 to 18:00 in Buenos Aires correspond to 06:00 to 15:00 in CST.
Buenos Aires to PST
For most of the year, Buenos Aires is 4 hours ahead of PDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, Buenos Aires is 5 hours ahead of PST.
For most of the year, working hours of 9:00 am to 6:00 pm in Buenos Aires correspond to 5:00 am to 2:00 pm in PDT. At other times of the year, working hours of 9:00 am to 6:00 pm in Buenos Aires correspond to 4:00 am to 1:00 pm in PST.For most of the year, working hours of 09:00 to 18:00 in Buenos Aires correspond to 05:00 to 14:00 in PDT. At other times of the year, working hours of 09:00 to 18:00 in Buenos Aires correspond to 04:00 to 13:00 in PST.
Buenos Aires to EST
For most of the year, Buenos Aires is 1 hour ahead of EDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, Buenos Aires is 2 hours ahead of EST.
For most of the year, working hours of 9:00 am to 6:00 pm in Buenos Aires correspond to 8:00 am to 5:00 pm in EDT. At other times of the year, working hours of 9:00 am to 6:00 pm in Buenos Aires correspond to 7:00 am to 4:00 pm in EST.For most of the year, working hours of 09:00 to 18:00 in Buenos Aires correspond to 08:00 to 17:00 in EDT. At other times of the year, working hours of 09:00 to 18:00 in Buenos Aires correspond to 07:00 to 16:00 in EST.
Compare Buenos Aires time with MST, CST, PST, and EST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
ART (Argentina Time) is 4 hours ahead of Mountain Standard Time. ART (Argentina Time) is 3 hours ahead of Central Standard Time. ART (Argentina Time) is 5 hours ahead of Pacific Standard Time. ART (Argentina Time) is 2 hours ahead of Eastern Standard Time.
9:00 am09:00 in Buenos Aires, Argentina is 5:00 am05:00 in MST and is 6:00 am06:00 in CST and is 4:00 am04:00 in PST and is 7:00 am07:00 in EST
Buenos Aires to MST call time
Best time for a conference call or a meeting is between 1pm-6pm13:00-18:00 in Buenos Aires which corresponds to 9am-2pm09:00-14:00 in MST
Buenos Aires to CST call time
Best time for a conference call or a meeting is between 12pm-6pm12:00-18:00 in Buenos Aires which corresponds to 9am-3pm09:00-15:00 in CST
Buenos Aires to PST call time
Best time for a conference call or a meeting is between 2pm-6pm14:00-18:00 in Buenos Aires which corresponds to 9am-1pm09:00-13:00 in PST
Buenos Aires to EST call time
Best time for a conference call or a meeting is between 11am-6pm11:00-18:00 in Buenos Aires which corresponds to 9am-4pm09:00-16:00 in EST
9:00 am09:00 ART (Argentina Time) (Buenos Aires, Argentina). Offset UTC -3:00 hours
5:00 am05:00 Mountain Standard Time (MST). Offset UTC -7:00 hours
6:00 am06:00 Central Standard Time (CST). Offset UTC -6:00 hours
4:00 am04:00 Pacific Standard Time (PST). Offset UTC -8:00 hours
7:00 am07:00 Eastern Standard Time (EST). Offset UTC -5:00 hours
9:00 am09:00 Buenos Aires, Argentina / 5:00 am05:00 MST / 6:00 am06:00 CST / 4:00 am04:00 PST / 7:00 am07:00 EST
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| Buenos Aires, Argentina | MST | CST | PST | EST |
|---|---|---|---|---|
| 8:00pm previous day | 9:00pm previous day | 7:00pm previous day | 10:00pm previous day | |
| 9:00pm previous day | 10:00pm previous day | 8:00pm previous day | 11:00pm previous day | |
| 10:00pm previous day | 11:00pm previous day | 9:00pm previous day | 12:00am | |
| 11:00pm previous day | 12:00am | 10:00pm previous day | 1:00am | |
| 12:00am | 1:00am | 11:00pm previous day | 2:00am | |
| 1:00am | 2:00am | 12:00am | 3:00am | |
| 2:00am | 3:00am | 1:00am | 4:00am | |
| 3:00am | 4:00am | 2:00am | 5:00am | |
| 4:00am | 5:00am | 3:00am | 6:00am | |
| 5:00am | 6:00am | 4:00am | 7:00am | |
| 6:00am | 7:00am | 5:00am | 8:00am | |
| 7:00am | 8:00am | 6:00am | 9:00am | |
| 8:00am | 9:00am | 7:00am | 10:00am | |
| 9:00am | 10:00am | 8:00am | 11:00am | |
| 10:00am | 11:00am | 9:00am | 12:00pm | |
| 11:00am | 12:00pm | 10:00am | 1:00pm | |
| 12:00pm | 1:00pm | 11:00am | 2:00pm | |
| 1:00pm | 2:00pm | 12:00pm | 3:00pm | |
| 2:00pm | 3:00pm | 1:00pm | 4:00pm | |
| 3:00pm | 4:00pm | 2:00pm | 5:00pm | |
| 4:00pm | 5:00pm | 3:00pm | 6:00pm | |
| 5:00pm | 6:00pm | 4:00pm | 7:00pm | |
| 6:00pm | 7:00pm | 5:00pm | 8:00pm | |
| 7:00pm | 8:00pm | 6:00pm | 9:00pm | |
| 20:00 previous day | 21:00 previous day | 19:00 previous day | 22:00 previous day | |
| 21:00 previous day | 22:00 previous day | 20:00 previous day | 23:00 previous day | |
| 22:00 previous day | 23:00 previous day | 21:00 previous day | 00:00 | |
| 23:00 previous day | 00:00 | 22:00 previous day | 01:00 | |
| 00:00 | 01:00 | 23:00 previous day | 02:00 | |
| 01:00 | 02:00 | 00:00 | 03:00 | |
| 02:00 | 03:00 | 01:00 | 04:00 | |
| 03:00 | 04:00 | 02:00 | 05:00 | |
| 04:00 | 05:00 | 03:00 | 06:00 | |
| 05:00 | 06:00 | 04:00 | 07:00 | |
| 06:00 | 07:00 | 05:00 | 08:00 | |
| 07:00 | 08:00 | 06:00 | 09:00 | |
| 08:00 | 09:00 | 07:00 | 10:00 | |
| 09:00 | 10:00 | 08:00 | 11:00 | |
| 10:00 | 11:00 | 09:00 | 12:00 | |
| 11:00 | 12:00 | 10:00 | 13:00 | |
| 12:00 | 13:00 | 11:00 | 14:00 | |
| 13:00 | 14:00 | 12:00 | 15:00 | |
| 14:00 | 15:00 | 13:00 | 16:00 | |
| 15:00 | 16:00 | 14:00 | 17:00 | |
| 16:00 | 17:00 | 15:00 | 18:00 | |
| 17:00 | 18:00 | 16:00 | 19:00 | |
| 18:00 | 19:00 | 17:00 | 20:00 | |
| 19:00 | 20:00 | 18:00 | 21:00 |
Buenos Aires Time Zone and Facts
Time Zone
Buenos Aires Facts
Mountain Standard Time
Offset: MST is 7 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Canada, Mexico, United States
Principal Cities: The largest city in the MST time zone is Phoenix in the United States, with about 1.65 million people. Other major cities in this time zone include Ciudad Juárez, Hermosillo, Culiacán, Denver.
French: HNR - Heure Normale des Rocheuses
Spanish: MT - Zona Pacífico
Today all shaded areas are on MST.
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Mountain Daylight Time (MDT).
Start: Mountain Standard Time (MST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.
End: Mountain Standard Time (MST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.
See USA daylight saving time and upcoming clock changes worldwide.
MST representations, usage and related time zones
- -07 - basic short
- -0700 - basic
- -07:00 - extended
- -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates an offset of seven hours to the west of the zero meridian.
- Tango - Military abbreviation for MST
- T - short form of 'Tango'
- America/Boise
- America/Cambridge_Bay
- America/Ciudad_Juarez
- America/Creston
- America/Dawson
- America/Dawson_Creek
- America/Denver
- America/Edmonton
- America/Fort_Nelson
- America/Hermosillo
- America/Inuvik
- America/Mazatlan
- America/Phoenix
- America/Shiprock
- America/Whitehorse
- America/Yellowknife
- Canada/Mountain
- Canada/Yukon
- MST
- MST7MDT
- Mexico/BajaSur
- Navajo
- US/Arizona
- US/Mountain
- MST - Mountain Standard Time
- PDT - Pacific Daylight Time
- YST - Yukon Standard Time
- T - Tango Time Zone
Central Standard Time
Offset: CST is 6 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Belize, Canada, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, United States
Principal Cities: The largest city in the CST time zone is Mexico City in Mexico, with about 12.294 million people. Other major cities in this time zone include Chicago, Houston, Puebla, Santiago de Querétaro.
French: HNC - Heure Normale du Centre
Spanish: CT - Tiempo Central Estándar, CT - Zona Centro
Today all shaded areas are on CST.
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Central Daylight Time (CDT).
Start: Central Standard Time (CST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.
End: Central Standard Time (CST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.
See USA daylight saving time and upcoming clock changes worldwide.
CST 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 CST
- S - short form of 'Sierra'
- America/Bahia_Banderas
- America/Belize
- America/Chicago
- America/Chihuahua
- America/Costa_Rica
- America/El_Salvador
- America/Guatemala
- America/Indiana/Knox
- America/Indiana/Tell_City
- America/Knox_IN
- America/Managua
- America/Matamoros
- America/Menominee
- America/Merida
- America/Mexico_City
- America/Monterrey
- America/North_Dakota/Beulah
- America/North_Dakota/Center
- America/North_Dakota/New_Salem
- America/Ojinaga
- America/Rainy_River
- America/Rankin_Inlet
- America/Regina
- America/Resolute
- America/Swift_Current
- America/Tegucigalpa
- America/Winnipeg
- CST6CDT
- Canada/Central
- Canada/Saskatchewan
- Mexico/General
- US/Central
- US/Indiana-Starke
- Central Standard Time - UTC -6
- China Standard Time - UTC +8
- Cuba Standard Time - UTC -5
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone
Pacific Standard Time
Offset: PST is 8 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Mexico, United States
Principal Cities: The largest city in the PST time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.
French: HNP - Heure Normale du Pacifique
Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste
Today all shaded areas are on PST.
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Pacific Daylight Time (PDT).
Start: Pacific Standard Time (PST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.
End: Pacific Standard Time (PST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.
See USA daylight saving time and upcoming clock changes worldwide.
PST representations, usage and related time zones
- -08 - basic short
- -0800 - basic
- -08:00 - extended
- -0800 - sign character (-) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the west of the zero meridian.
- Uniform - Military abbreviation for PST
- U - short form of 'Uniform'
- America/Ensenada
- America/Los_Angeles
- America/Santa_Isabel
- America/Tijuana
- America/Vancouver
- Canada/Pacific
- Mexico/BajaNorte
- PST8PDT
- US/Pacific
- Pacific Standard Time - UTC -8
- Pitcairn Standard Time - UTC -8
- AKDT - Alaska Daylight Time
- PST - Pacific Standard Time
- PT - Pacific Time
- PST - Pitcairn Standard Time
- U - Uniform Time Zone
Eastern Standard Time
Offset: EST is 5 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Bahamas, Canada, Cayman Islands, Haiti, Jamaica, Mexico, Panama, Turks and Caicos Islands, United States
Principal Cities: The largest city in the EST time zone is New York City in the United States, with about 8.804 million people. Other major cities in this time zone include Toronto, Montréal, Philadelphia, Port-au-Prince.
French: HNE - Heure Normale de l'Est
Spanish: ET - Tiempo del Este, ET - Zona Sureste
Today all shaded areas are on EST.
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Eastern Daylight Time (EDT).
Start: Eastern Standard Time (EST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.
End: Eastern Standard Time (EST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.
See USA daylight saving time and upcoming clock changes worldwide.
EST representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
- Romeo - Military abbreviation for EST
- R - short form of 'Romeo'
- America/Atikokan
- America/Cancun
- America/Cayman
- America/Coral_Harbour
- America/Detroit
- America/Fort_Wayne
- America/Grand_Turk
- America/Indiana/Indianapolis
- America/Indiana/Marengo
- America/Indiana/Petersburg
- America/Indiana/Vevay
- America/Indiana/Vincennes
- America/Indiana/Winamac
- America/Indianapolis
- America/Iqaluit
- America/Jamaica
- America/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Panama
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST
- EST5EDT
- Jamaica
- US/East-Indiana
- US/Eastern
- US/Michigan
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone