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San Cristobal de las Casas to AST Time Converter

Updating current time…
San Cristobal de las Casas
Mexico
CST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
AST
Atlantic Standard Time
GMT -4
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

For most of the year, San Cristobal de las Casas is 3 hours behind ADT. During seasonal clock changes, San Cristobal de las Casas is 2 hours behind AST.

For most of the year, working hours of 9:00 am to 5:00 pm in San Cristobal de las Casas correspond to 12:00 pm to 8:00 pm in ADT. During seasonal clock changes, working hours of 9:00 am to 5:00 pm in San Cristobal de las Casas correspond to 11:00 am to 7:00 pm in AST.

Compare San Cristobal de las Casas time with AST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

CST (Central Standard Time) is 2 hours behind Atlantic Standard Time
6:00 am06:00 in San Cristobal de las Casas, Mexico is 8:00 am08:00 in AST

San Cristóbal de las Casas to AST call time
Best time for a conference call or a meeting is between 9am-3pm in San Cristóbal de las Casas which corresponds to 11am-5pm in AST

6:00 am06:00 CST (Central Standard Time) (San Cristobal de las Casas, Mexico). Offset UTC -6:00 hours
8:00 am08:00 Atlantic Standard Time (AST). Offset UTC -4:00 hours

6:00 am06:00 San Cristobal de las Casas, Mexico / 8:00 am08:00 AST

San Cristobal de las Casas, MexicoAST
12am (midnight)2am
1am3am
2am4am
3am5am
4am6am
5am7am
6am8am
7am9am
8am10am
9am11am
10am12pm (noon)
11am1pm
12pm (noon)2pm
1pm3pm
2pm4pm
3pm5pm
4pm6pm
5pm7pm
6pm8pm
7pm9pm
8pm10pm
9pm11pm
10pm12am (midnight)
11pm1am
00:0002:00
01:0003:00
02:0004:00
03:0005:00
04:0006:00
05:0007:00
06:0008:00
07:0009:00
08:0010:00
09:0011:00
10:0012:00
11:0013:00
12:0014:00
13:0015:00
14:0016:00
15:0017:00
16:0018:00
17:0019:00
18:0020:00
19:0021:00
20:0022:00
21:0023:00
22:0000:00
23:0001:00

San Cristóbal de las Casas Information

Time Zone

Abbreviation / Name
CST - Central Standard Time
UTC / GMT Offset
-6:00 hours during Central Standard Time, currently in use.

San Cristóbal de las Casas Facts

Country
Mexico
Alternative Names
Ciudad Las Casas, Ciudad de las Casas, SZT, San Cristobal, San Cristobal de Las Casas, San Cristobal de las Casas, San Cristobal las Casas, San Cristóbal, San Cristóbal de Las Casas, San Cristóbal de las Casas, San Cristóbal las Casas
Population
158,027
Currency
Peso (MXN)
Geographic Coordinates
16° 43' N Latitude / 92° 38' W Longitude
International Dialing Code
+52

Atlantic Standard Time

Offset: AST is 4 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries using this time zone: Antigua & Barbuda, Anguilla, Aruba, Barbados, St Barthelemy, Bermuda, Caribbean NL, Canada, Curaçao, Dominica, Dominican Republic, Grenada, Greenland, Guadeloupe, St Kitts & Nevis, St Lucia, St Martin (French), Martinique, Montserrat, Puerto Rico, St Maarten (Dutch), Trinidad & Tobago, St Vincent, Virgin Islands (UK), Virgin Islands (US)

Principal Cities: The largest city in the AST time zone is Santo Domingo in Dominican Republic, with about 2.202 million people. Other major cities in this time zone include Santiago de los Caballeros, Santo Domingo Oeste, San Juan, Halifax.

French: HNA - Heure Normale de l'Atlantique

Spanish: AST - Tiempo Estándar del Atlántico

AST Time Zone Geo Map
AST timezone map

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Atlantic Daylight Time (ADT).

Daylight saving time clock moves back for one hour from 2am to 1amStart: Atlantic Standard Time (AST) started on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually on the first Sunday of November.

Daylight saving time clock moves forward for one hour from 2am to 3amEnd: Atlantic Standard Time (AST) ends on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am local daylight time instead. Standard time ends annually on the second Sunday of March.

AST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -04 - basic short
  • -0400 - basic
  • -04:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Quebec - Military abbreviation for AST
  • Q - short form of 'Quebec'
IANA/Olson: Reflects AST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Anguilla
  • America/Antigua
  • America/Aruba
  • America/Barbados
  • America/Blanc-Sablon
  • America/Curacao
  • America/Dominica
  • America/Glace_Bay
  • America/Goose_Bay
  • America/Grenada
  • America/Guadeloupe
  • America/Halifax
  • America/Kralendijk
  • America/Lower_Princes
  • America/Marigot
  • America/Martinique
  • America/Moncton
  • America/Montserrat
  • America/Port_of_Spain
  • America/Puerto_Rico
  • America/Santo_Domingo
  • America/St_Barthelemy
  • America/St_Kitts
  • America/St_Lucia
  • America/St_Thomas
  • America/St_Vincent
  • America/Thule
  • America/Tortola
  • America/Virgin
  • Atlantic/Bermuda
  • Canada/Atlantic
AST Abbreviation: Several time zones share AST abbreviation and it could refer to these time zones
  • Atlantic Standard Time - UTC -4
  • Arabia Standard Time - UTC +3
Time zones with the GMT -4 offset:
  • AST - Atlantic Standard Time
  • EDT - Eastern Daylight Time
  • AMT - Amazon Time
  • BOT - Bolivia Time
  • CDT - Cuba Daylight Time
  • CLT - Chile Standard Time
  • FKT - Falkland Island Time
  • GYT - Guyana Time
  • HLV - Hora Legal de Venezuela
  • PYT - Paraguay Time
  • Q - Quebec Time Zone
  • VET - Venezuelan Standard Time
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT