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CDT/CST
Central Daylight Time
GMT -5
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Central Time is on daylight saving time: CDT (UTC−5) until Sun, Nov 1.

Mexico City and Saskatchewan stay on CST (UTC−6).

WT/WST
Western Sahara Standard Time
GMT +0
12am
3am
6am
9am
12pm
3pm
6pm
9pm
WST is not used on this date.

This converter uses WT (UTC+0), as in El Aaiun.

Quick answers

Selected conversion

7:00 am07:00 CDT (UTC-5), Oct 6, 2026 = 12:00 pm12:00 WT (UTC+0), Oct 6, 2026

CDT is 5 hours behind WT.

CST and WST examples

These examples always use CST (UTC-6) and WST (UTC+1). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

CST is 7 hours behind WST.

CST uses UTC-6 during standard time. For Central Time that follows daylight saving time, use CT to WST. For daylight-time examples, use CDT to WST.

How the time difference changes

During 2026, the difference changes: CDT is 6 hours behind WST, CST is 6 hours behind WT, CDT is 5 hours behind WT, and CST is 7 hours behind WST.

During 2026, working-hour overlap changes: working hours of 9:00 am to 5:00 pm in CDT correspond to 3:00 pm to 11:00 pm in WST, working hours of 9:00 am to 5:00 pm in CST correspond to 3:00 pm to 11:00 pm in WT, working hours of 9:00 am to 5:00 pm in CDT correspond to 2:00 pm to 10:00 pm in WT, and working hours of 9:00 am to 5:00 pm in CST correspond to 4:00 pm to 12:00 am (next day) in WST.During 2026, working-hour overlap changes: working hours of 09:00 to 17:00 in CDT correspond to 15:00 to 23:00 in WST, working hours of 09:00 to 17:00 in CST correspond to 15:00 to 23:00 in WT, working hours of 09:00 to 17:00 in CDT correspond to 14:00 to 22:00 in WT, and working hours of 09:00 to 17:00 in CST correspond to 16:00 to 00:00 (next day) in WST.

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

Time Difference

Central Daylight Time is 5 hours behind Western Sahara Standard Time.
7:00 am07:00 in CDT is 12:00 pm12:00 in WT

CDT to WT call time
Best time for a conference call or a meeting is between 9am-12pm09:00-12:00 in CDT which corresponds to 2pm-5pm14:00-17:00 in WT

7:00 am07:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
12:00 pm12:00 Western Sahara Standard Time (WT). Offset UTC 0:00 hours

7:00 am07:00 CDT / 12:00 pm12:00 WT

CDTWT
12:00am5:00am
1:00am6:00am
2:00am7:00am
3:00am8:00am
4:00am9:00am
5:00am10:00am
6:00am11:00am
7:00am12:00pm
8:00am1:00pm
9:00am2:00pm
10:00am3:00pm
11:00am4:00pm
12:00pm5:00pm
1:00pm6:00pm
2:00pm7:00pm
3:00pm8:00pm
4:00pm9:00pm
5:00pm10:00pm
6:00pm11:00pm
7:00pm12:00am
8:00pm1:00am
9:00pm2:00am
10:00pm3:00am
11:00pm4:00am
00:0005:00
01:0006:00
02:0007:00
03:0008:00
04:0009:00
05:0010:00
06:0011:00
07:0012:00
08:0013:00
09:0014:00
10:0015:00
11:0016:00
12:0017:00
13:0018:00
14:0019:00
15:0020:00
16:0021:00
17:0022:00
18:0023:00
19:0000:00
20:0001:00
21:0002:00
22:0003:00
23:0004:00

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 forward for one hourEnd: Central Standard Time (CST) ended 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 local daylight time instead. Standard time ends annually on the second Sunday of March.

Daylight saving time clock moves back for one hourStart: Central Standard Time (CST) starts 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. Standard time starts annually on the first Sunday of November.

See upcoming clock changes worldwide.

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

Western Sahara Summer Time

Offset: WST is 1 hour ahead Greenwich Mean Time (GMT) and is used in Africa

Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.

WST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +01 - basic short
  • +0100 - basic
  • +01:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Alpha - Military abbreviation for WST
  • A - short form of 'Alpha'
WST Abbreviation: Several time zones share WST abbreviation and it could refer to these time zones
  • Western Sahara Summer Time - UTC +1
  • West Samoa Time - UTC +13
Time zones with the GMT +1 offset:
  • BST - British Summer Time
  • CET - Central European Time
  • IST - Irish Standard Time
  • WEST - Western European Summer Time
  • A - Alpha Time Zone
  • CET - Central European Time
  • MEZ - Mitteleuropäische Zeit
  • WAT - West Africa Time
  • WST - Western Sahara Summer Time
  • BMT - Biel Mean Time