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CST
Central Standard Time
GMT -6
12am
3am
6am
9am
12pm
3pm
6pm
9pm
UTC
Universal Time Coordinated
GMT +0
12am
3am
6am
9am
12pm
3pm
6pm
9pm
PST
Pacific Standard Time
GMT -8
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

CST to UTC

For most of the year, CDT is 5 hours behind UTC. During seasonal clock changes, CST is 6 hours behind UTC.

For most of the year, working hours of 9:00 am to 5:00 pm in CDT correspond to 2:00 pm to 10:00 pm in UTC. During seasonal clock changes, working hours of 9:00 am to 5:00 pm in CST correspond to 3:00 pm to 11:00 pm in UTC.

CST to PST

For most of the year, CDT is 2 hours ahead of PDT. During seasonal clock changes, CST is 2 hours ahead of PST. Briefly around those changes, CDT is 3 hours ahead of PST or CST is 1 hour ahead of PDT.

For most of the year, working hours of 9:00 am to 5:00 pm in CDT correspond to 7:00 am to 3:00 pm in PDT. During seasonal clock changes, working hours of 9:00 am to 5:00 pm in CST correspond to 7:00 am to 3:00 pm in PST.

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

Time Difference

Central Standard Time is 6 hours behind Universal Time Coordinated and 2 hours ahead of Pacific Standard Time
6:00 am06:00 in CST is 12:00 pm12:00 in UTC and is 4:00 am04:00 in PST

CST to UTC call time
Best time for a conference call or a meeting is between 9am-11am in CST which corresponds to 3pm-5pm in UTC
CST to PST call time
Best time for a conference call or a meeting is between 11am-5pm in CST which corresponds to 9am-3pm in PST

6:00 am06:00 Central Standard Time (CST). Offset UTC -6:00 hours
12:00 pm12:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
4:00 am04:00 Pacific Standard Time (PST). Offset UTC -8:00 hours

6:00 am06:00 CST / 12:00 pm12:00 UTC / 4:00 am04:00 PST

CSTUTCPST
12am (midnight)6am10pm
1am7am11pm
2am8am12am (midnight)
3am9am1am
4am10am2am
5am11am3am
6am12pm (noon)4am
7am1pm5am
8am2pm6am
9am3pm7am
10am4pm8am
11am5pm9am
12pm (noon)6pm10am
1pm7pm11am
2pm8pm12pm (noon)
3pm9pm1pm
4pm10pm2pm
5pm11pm3pm
6pm12am (midnight)4pm
7pm1am5pm
8pm2am6pm
9pm3am7pm
10pm4am8pm
11pm5am9pm
00:0006:0022:00
01:0007:0023:00
02:0008:0000:00
03:0009:0001:00
04:0010:0002:00
05:0011:0003:00
06:0012:0004:00
07:0013:0005:00
08:0014:0006:00
09:0015:0007:00
10:0016:0008:00
11:0017:0009:00
12:0018:0010:00
13:0019:0011:00
14:0020:0012:00
15:0021:0013:00
16:0022:0014:00
17:0023:0015:00
18:0000:0016:00
19:0001:0017:00
20:0002:0018:00
21:0003:0019:00
22:0004:0020:00
23:0005:0021:00

Central Standard Time

Offset: CST is 6 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries using this time zone: Belize, Canada, Costa Rica, Guatemala, Honduras, Mexico, Nicaragua, El Salvador, 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, Iztapalapa, Ecatepec.

French: HNC - Heure Normale du Centre

Spanish: CT - Tiempo Central Estándar, CT - Zona Centro

CST Time Zone Geo Map
CST 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 Central Daylight Time (CDT).

Daylight saving time clock moves back for one hour from 2am to 1amStart: Central Standard Time (CST) 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: Central Standard Time (CST) 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.

CST 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 CST
  • S - short form of 'Sierra'
IANA/Olson: Reflects CST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • 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
CST Abbreviation: Several time zones share CST abbreviation and it could refer to these time zones
  • Central Standard Time - UTC -6
  • China Standard Time - UTC +8
  • Cuba Standard Time - UTC -5
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

Universal Time Coordinated

Offset: UTC is 0 hours ahead Greenwich Mean Time (GMT) and is used in Universal

Coordinated Universal Time (UTC) is the world time standard that regulates clocks and time. It is successor to Greenwich Mean Time (GMT). For casual use, UTC is the same as GMT, but is used by the scientific community.
UTC is the time standard commonly used across the world since 1972. It is used in many technical fields, like aviation industry and meteorologists, also used to synchronize time across internet networks.

UTC representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
  • +00 - basic short
  • +0000 - basic
  • +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Zulu - Military abbreviation for UTC
  • Z - short form of 'Zulu'
IANA/Olson: Reflects UTC time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Etc/UCT
  • Etc/UTC
  • Etc/Universal
  • Etc/Zulu
  • UCT
  • UTC
  • Universal
  • Zulu
Time zones with the GMT +0 offset:
  • EGST - Eastern Greenland Summer Time
  • GMT - Greenwich Mean Time
  • WET - Western European Time
  • AZOST - Azores Summer Time
  • UTC - Universal Time Coordinated
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone

Pacific Standard Time

Offset: PST is 8 hours behind Greenwich Mean Time (GMT) and is used in North America

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

Principal Cities: The largest city in the PST time zone is Los Angeles in the United States, with about 3.793 million people. Other major cities in this time zone include Vancouver, Tijuana, San Diego, San Jose.

French: HNP - Heure Normale du Pacifique

Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste

PST Time Zone Geo Map
PST 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 Pacific Daylight Time (PDT).

Daylight saving time clock moves back for one hour from 2am to 1amStart: Pacific Standard Time (PST) 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: Pacific Standard Time (PST) 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.

PST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -08 - basic short
  • -0800 - basic
  • -08:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Uniform - Military abbreviation for PST
  • U - short form of 'Uniform'
IANA/Olson: Reflects PST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Ensenada
  • America/Los_Angeles
  • America/Santa_Isabel
  • America/Tijuana
  • America/Vancouver
  • Canada/Pacific
  • Mexico/BajaNorte
  • PST8PDT
  • US/Pacific
PST Abbreviation: Several time zones share PST abbreviation and it could refer to these time zones
  • Pacific Standard Time - UTC -8
  • Pitcairn Standard Time - UTC -8
Time zones with the GMT -8 offset:
  • AKDT - Alaska Daylight Time
  • PST - Pacific Standard Time
  • PT - Pacific Time
  • PST - Pitcairn Standard Time
  • U - Uniform Time Zone