IST Ist to CST Converter
Time Difference
Iran Standard Time is 9 hours and 30 minutes ahead of Central Standard Time
9:00 pm21:00 in IST is 11:30 am11:30 in CST
IST to CST call time
Best time for a conference call or a meeting is between 5:30pm-7:30pm in IST which corresponds to 8am-10am in CST
9:00 pm21:00 Iran Standard Time (IST). Offset UTC +3:30 hours
11:30 am11:30 Central Standard Time (CST). Offset UTC -6:00 hours
9:00 pm21:00 IST / 11:30 am11:30 CST
| IST | CST |
|---|---|
| 12am (midnight) | 2:30 pm |
| 1am | 3:30 pm |
| 2am | 4:30 pm |
| 3am | 5:30 pm |
| 4am | 6:30 pm |
| 5am | 7:30 pm |
| 6am | 8:30 pm |
| 7am | 9:30 pm |
| 8am | 10:30 pm |
| 9am | 11:30 pm |
| 10am | 12:30 am |
| 11am | 1:30 am |
| 12pm (noon) | 2:30 am |
| 1pm | 3:30 am |
| 2pm | 4:30 am |
| 3pm | 5:30 am |
| 4pm | 6:30 am |
| 5pm | 7:30 am |
| 6pm | 8:30 am |
| 7pm | 9:30 am |
| 8pm | 10:30 am |
| 9pm | 11:30 am |
| 10pm | 12:30 pm |
| 11pm | 1:30 pm |
| 0:00 | 14:30 |
| 1:00 | 15:30 |
| 2:00 | 16:30 |
| 3:00 | 17:30 |
| 4:00 | 18:30 |
| 5:00 | 19:30 |
| 6:00 | 20:30 |
| 7:00 | 21:30 |
| 8:00 | 22:30 |
| 9:00 | 23:30 |
| 10:00 | 0:30 |
| 11:00 | 1:30 |
| 12:00 | 2:30 |
| 13:00 | 3:30 |
| 14:00 | 4:30 |
| 15:00 | 5:30 |
| 16:00 | 6:30 |
| 17:00 | 7:30 |
| 18:00 | 8:30 |
| 19:00 | 9:30 |
| 20:00 | 10:30 |
| 21:00 | 11:30 |
| 22:00 | 12:30 |
| 23:00 | 13:30 |
Iran Standard Time
Offset: IST is 3 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: Israel
Principal Cities: The largest city in the IST timezone is Jerusalem from Israel with population about 801,000 people. Other major cities in the area are West Jerusalem, Haifa, Tel Aviv, Ashdod
IST representations, usage and related time zones
- +0330 - basic
- +03:30 - extended
- +0330 - sign character (+) followed by a four digit time providing hours (03) and minutes (30) of the offset. Indicates three hour and thirty minutes time differences to the east of the zero meridian.
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
- Iran Standard Time - UTC +3:30
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
French: HNC - Heure Normale du Centre
Spanish: CT - Tiempo Central Estándar, CT - Zona Centro
Daylight Saving: This is a standard timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Central Daylight Time (CDT).
Start: Central Standard Time (CST) started on Sunday, November 3, 2024 at 2:00 am local time and clocks were set one hour back to Sunday, November 3, 2024, 1:00 am. Standard time starts annually the on first Sunday of November.
End: Central Standard Time (CST) ends on Sunday, March 9, 2025 at 2:00 am local time and clocks are set one hour forward to Sunday, March 9, 2025, 3:00 am local daylight time instead. Standard time starts annually the on second Sunday of March.
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