UTC to CST to IST
Compare UTC time with CST and IST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Universal Time Coordinated is 6 hours ahead of Central Standard Time and 5 hours and 30 minutes behind India Standard Time
12:00 pm12:00 in UTC is 6:00 am06:00 in CST and is 5:30 pm17:30 in IST
UTC to CST call time
Best time for a conference call or a meeting is between 3pm-5pm in UTC which corresponds to 9am-11am in CST
UTC to IST call time
Best time for a conference call or a meeting is between 9am-11:30am in UTC which corresponds to 2:30pm-5pm in IST
12:00 pm12:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
6:00 am06:00 Central Standard Time (CST). Offset UTC -6:00 hours
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
12:00 pm12:00 UTC / 6:00 am06:00 CST / 5:30 pm17:30 IST
| UTC | CST | IST |
|---|---|---|
| 12am (midnight) | 6pm | 5:30 am |
| 1am | 7pm | 6:30 am |
| 2am | 8pm | 7:30 am |
| 3am | 9pm | 8:30 am |
| 4am | 10pm | 9:30 am |
| 5am | 11pm | 10:30 am |
| 6am | 12am (midnight) | 11:30 am |
| 7am | 1am | 12:30 pm |
| 8am | 2am | 1:30 pm |
| 9am | 3am | 2:30 pm |
| 10am | 4am | 3:30 pm |
| 11am | 5am | 4:30 pm |
| 12pm (noon) | 6am | 5:30 pm |
| 1pm | 7am | 6:30 pm |
| 2pm | 8am | 7:30 pm |
| 3pm | 9am | 8:30 pm |
| 4pm | 10am | 9:30 pm |
| 5pm | 11am | 10:30 pm |
| 6pm | 12pm (noon) | 11:30 pm |
| 7pm | 1pm | 12:30 am |
| 8pm | 2pm | 1:30 am |
| 9pm | 3pm | 2:30 am |
| 10pm | 4pm | 3:30 am |
| 11pm | 5pm | 4:30 am |
| 00:00 | 18:00 | 05:30 |
| 01:00 | 19:00 | 06:30 |
| 02:00 | 20:00 | 07:30 |
| 03:00 | 21:00 | 08:30 |
| 04:00 | 22:00 | 09:30 |
| 05:00 | 23:00 | 10:30 |
| 06:00 | 00:00 | 11:30 |
| 07:00 | 01:00 | 12:30 |
| 08:00 | 02:00 | 13:30 |
| 09:00 | 03:00 | 14:30 |
| 10:00 | 04:00 | 15:30 |
| 11:00 | 05:00 | 16:30 |
| 12:00 | 06:00 | 17:30 |
| 13:00 | 07:00 | 18:30 |
| 14:00 | 08:00 | 19:30 |
| 15:00 | 09:00 | 20:30 |
| 16:00 | 10:00 | 21:30 |
| 17:00 | 11:00 | 22:30 |
| 18:00 | 12:00 | 23:30 |
| 19:00 | 13:00 | 00:30 |
| 20:00 | 14:00 | 01:30 |
| 21:00 | 15:00 | 02:30 |
| 22:00 | 16:00 | 03:30 |
| 23:00 | 17:00 | 04:30 |
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 the zero UTC/GMT offset.
- 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
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
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).
Start: 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.
End: 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
- -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 an offset of six hours 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
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries using this time zone: India
Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bangalore, Kolkata, Chennai.
Daylight Saving: Clocks in India Standard Time (IST) do not change for daylight saving time, so IST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.
IST representations, usage and related time zones
- +0530 - basic
- +05:30 - extended
- +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates an offset of five hours and thirty minutes to the east of the zero meridian.
- Asia/Calcutta
- Asia/Kolkata
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2