CST to CDT to EDT to UTC
Time Difference
Central Daylight Time is 0 hours ahead of Central Daylight Time and 1 hours behind Eastern Daylight Time and 5 hours behind Universal Time Coordinated
9:00 pm21:00 in CDT is 9:00 pm21:00 in CDT and is 10:00 pm22:00 in EDT and is 2:00 am02:00 in UTC
CST to CDT call time
Best time for a conference call or a meeting is between 8am-5pm in CST which corresponds to 9am-6pm in CDT
CST to EDT call time
Best time for a conference call or a meeting is between 8am-4pm in CST which corresponds to 10am-6pm in EDT
CST to UTC call time
Best time for a conference call or a meeting is between 8am-12pm in CST which corresponds to 2pm-6pm in UTC
9:00 pm21:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
9:00 pm21:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
10:00 pm22:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
2:00 am02:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
9:00 pm21:00 CDT / 9:00 pm21:00 CDT / 10:00 pm22:00 EDT / 2:00 am02:00 UTC
| CDT | CDT | EDT | UTC |
|---|---|---|---|
| 12am (midnight) | 12am (midnight) | 1am | 5am |
| 1am | 1am | 2am | 6am |
| 2am | 2am | 3am | 7am |
| 3am | 3am | 4am | 8am |
| 4am | 4am | 5am | 9am |
| 5am | 5am | 6am | 10am |
| 6am | 6am | 7am | 11am |
| 7am | 7am | 8am | 12pm (noon) |
| 8am | 8am | 9am | 1pm |
| 9am | 9am | 10am | 2pm |
| 10am | 10am | 11am | 3pm |
| 11am | 11am | 12pm (noon) | 4pm |
| 12pm (noon) | 12pm (noon) | 1pm | 5pm |
| 1pm | 1pm | 2pm | 6pm |
| 2pm | 2pm | 3pm | 7pm |
| 3pm | 3pm | 4pm | 8pm |
| 4pm | 4pm | 5pm | 9pm |
| 5pm | 5pm | 6pm | 10pm |
| 6pm | 6pm | 7pm | 11pm |
| 7pm | 7pm | 8pm | 12am (midnight) |
| 8pm | 8pm | 9pm | 1am |
| 9pm | 9pm | 10pm | 2am |
| 10pm | 10pm | 11pm | 3am |
| 11pm | 11pm | 12am (midnight) | 4am |
| 0:00 | 0:00 | 1:00 | 5:00 |
| 1:00 | 1:00 | 2:00 | 6:00 |
| 2:00 | 2:00 | 3:00 | 7:00 |
| 3:00 | 3:00 | 4:00 | 8:00 |
| 4:00 | 4:00 | 5:00 | 9:00 |
| 5:00 | 5:00 | 6:00 | 10:00 |
| 6:00 | 6:00 | 7:00 | 11:00 |
| 7:00 | 7:00 | 8:00 | 12:00 |
| 8:00 | 8:00 | 9:00 | 13:00 |
| 9:00 | 9:00 | 10:00 | 14:00 |
| 10:00 | 10:00 | 11:00 | 15:00 |
| 11:00 | 11:00 | 12:00 | 16:00 |
| 12:00 | 12:00 | 13:00 | 17:00 |
| 13:00 | 13:00 | 14:00 | 18:00 |
| 14:00 | 14:00 | 15:00 | 19:00 |
| 15:00 | 15:00 | 16:00 | 20:00 |
| 16:00 | 16:00 | 17:00 | 21:00 |
| 17:00 | 17:00 | 18:00 | 22:00 |
| 18:00 | 18:00 | 19:00 | 23:00 |
| 19:00 | 19:00 | 20:00 | 0:00 |
| 20:00 | 20:00 | 21:00 | 1:00 |
| 21:00 | 21:00 | 22:00 | 2:00 |
| 22:00 | 22:00 | 23:00 | 3:00 |
| 23:00 | 23:00 | 0:00 | 4:00 |
Central Standard Time
Offset: CST is 6 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Belize, Canada, Costa Rica, Guatemala, Honduras, Mexico, Nicaragua, El Salvador, United States
Principal Cities: The largest city in the CST timezone is Mexico City from Mexico with population about 12.294 million people. Other major cities in the area are Chicago, Houston, Iztapalapa, Ecatepec
French: HNC - Heure Normale du Centre
Spanish: CT - Tiempo Central Estándar, CT - Zona Centro
Daylight Saving: This is a standard time zone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Central Daylight Time (CDT).
End: Central Standard Time (CST) has ended on Sunday, March 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.
Start: Central Standard Time (CST) starts on Sunday, November 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 1:00 am. Standard time starts annually the on first Sunday of November.
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 six hour and zero minutes time differences 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
- Colombia 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
Central Daylight Time
Offset: CDT is 5 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Canada, Cuba, Mexico, United States
Principal Cities: The largest city in the CDT timezone is Chicago from USA with population about 2.696 million people. Other major cities in the area are Havana, Houston, Ciudad Juarez, San Antonio
French: HAC - Heure Avancée du Centre
Spanish: CT - Zona Centro
Daylight Saving: Central Daylight Time (CDT) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Central Standard Time (CST).
Start: Central Daylight Time (CDT) started on Sunday, March 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 3:00 am. Daylight saving starts annually the on second Sunday of March
End: Central Daylight Time (CDT) ends on Sunday, November 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 1:00 am local standard time instead. Daylight saving ends annually the on first Sunday of November
CDT 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 five hour and zero minutes time differences to the west of the zero meridian.
- Romeo - Military abbreviation for CDT
- R - short form of 'Romeo'
- America/Chicago
- America/Indiana/Knox
- America/Indiana/Tell_City
- America/Knox_IN
- America/Matamoros
- America/Menominee
- America/North_Dakota/Beulah
- America/North_Dakota/Center
- America/North_Dakota/New_Salem
- America/Ojinaga
- America/Rainy_River
- America/Rankin_Inlet
- America/Resolute
- America/Winnipeg
- CST6CDT
- Canada/Central
- US/Central
- US/Indiana-Starke
- Central Daylight Time - UTC -5
- Cuba Daylight Time - UTC -4
- 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
Eastern Daylight Time
Offset: EDT is 4 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Bahamas, Canada, Haiti, Turks & Caicos Is, United States
Principal Cities: The largest city in the EDT timezone is New York City from USA with population about 8.175 million people. Other major cities in the area are Toronto, Montreal, Brooklyn, Borough of Queens
French: HAE - Heure Avancée de l'Est
Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste
Daylight Saving: Eastern Daylight Time (EDT) is a daylight saving/summer timezone, however during winter some places switch clocks for one hour back and observe Eastern Standard Time (EST).
Start: Eastern Daylight Time (EDT) started on Sunday, March 9, 2025 at 2:00 am local time and clocks were set one hour forward to Sunday, March 9, 2025, 3:00 am. Daylight saving starts annually the on second Sunday of March
End: Eastern Daylight Time (EDT) ends on Sunday, November 2, 2025 at 2:00 am local time and clocks are set one hour back to Sunday, November 2, 2025, 1:00 am local standard time instead. Daylight saving ends annually the on first Sunday of November
EDT representations, usage and related time zones
- -04 - basic short
- -0400 - basic
- -04:00 - extended
- -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates four hour and zero minutes time differences to the west of the zero meridian.
- Quebec - Military abbreviation for EDT
- Q - short form of 'Quebec'
- 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/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST5EDT
- US/East-Indiana
- US/Eastern
- US/Michigan
- 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
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
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates zero hour and zero minutes time differences of the zero meridian.
- Zulu - Military abbreviation for UTC
- Z - short form of 'Zulu'
- Etc/UCT
- Etc/UTC
- Etc/Universal
- Etc/Zulu
- UCT
- UTC
- Universal
- Zulu
- 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