CST to IRST Converter
Time Difference
Central Daylight Time is 8 hours and 30 minutes behind of Iran Standard Time
12:00 am00:00 in CDT is 8:30 am08:30 in IRST
CST to IRST call time
Best time for a conference call or a meeting is between 8am-10am in CST which corresponds to 5:30pm-7:30pm in IRST
12:00 am00:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
8:30 am08:30 Iran Standard Time (IRST). Offset UTC +3:30 hours
12:00 am00:00 CDT / 8:30 am08:30 IRST
| CDT | IRST |
|---|---|
| 12am (midnight) | 8:30 am |
| 1am | 9:30 am |
| 2am | 10:30 am |
| 3am | 11:30 am |
| 4am | 12:30 pm |
| 5am | 1:30 pm |
| 6am | 2:30 pm |
| 7am | 3:30 pm |
| 8am | 4:30 pm |
| 9am | 5:30 pm |
| 10am | 6:30 pm |
| 11am | 7:30 pm |
| 12pm (noon) | 8:30 pm |
| 1pm | 9:30 pm |
| 2pm | 10:30 pm |
| 3pm | 11:30 pm |
| 4pm | 12:30 am |
| 5pm | 1:30 am |
| 6pm | 2:30 am |
| 7pm | 3:30 am |
| 8pm | 4:30 am |
| 9pm | 5:30 am |
| 10pm | 6:30 am |
| 11pm | 7:30 am |
| 0:00 | 8:30 |
| 1:00 | 9:30 |
| 2:00 | 10:30 |
| 3:00 | 11:30 |
| 4:00 | 12:30 |
| 5:00 | 13:30 |
| 6:00 | 14:30 |
| 7:00 | 15:30 |
| 8:00 | 16:30 |
| 9:00 | 17:30 |
| 10:00 | 18:30 |
| 11:00 | 19:30 |
| 12:00 | 20:30 |
| 13:00 | 21:30 |
| 14:00 | 22:30 |
| 15:00 | 23:30 |
| 16:00 | 0:30 |
| 17:00 | 1:30 |
| 18:00 | 2:30 |
| 19:00 | 3:30 |
| 20:00 | 4:30 |
| 21:00 | 5:30 |
| 22:00 | 6:30 |
| 23:00 | 7:30 |
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
Daylight Saving: This is a standard timezone, however during summer some places adjust time for one hour forward for daylight saving and observe Central Daylight Time (CDT).
End: CST ends annually the on first Sunday of April and clocks were set one hour forward on Sunday, 14 March 2021, at 2:00 (2:00 am) local time.
Start: CST starts annually the on last Sunday of October and clocks are set one hour back on Sunday, 07 November 2021, at 2:00 (2:00 am) local time.
French: HNC - Heure Normale du Centre
Spanish: CT - Tiempo Central Estándar, CT - Zona Centro
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/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/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