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CT
12am
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9pm
IOT
UTC+6
12h ahead
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Quick answers

Selected conversion

6:00 am06:00 CT (UTC-6), Nov 2, 2026 = 6:00 pm18:00 IOT (UTC+6), Nov 2, 2026

CT is 12 hours behind IOT.

How the time difference changes

For most of the year, CT is 11 hours behind IOT. From Nov 1, 2026 to Mar 14, 2027, CT is 12 hours behind IOT.

For most of the year, working hours of 9:00 am to 6:00 pm in CT correspond to 8:00 pm to 5:00 am (next day) in IOT. At other times of the year, working hours of 9:00 am to 6:00 pm in CT correspond to 9:00 pm to 6:00 am (next day) in IOT.For most of the year, working hours of 09:00 to 18:00 in CT correspond to 20:00 to 05:00 (next day) in IOT. At other times of the year, working hours of 09:00 to 18:00 in CT correspond to 21:00 to 06:00 (next day) in IOT.

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

Time Difference

Central Time is 12 hours behind Indian Chagos Time.
6:00 am06:00 in CT is 6:00 pm18:00 in IOT

CT to IOT call time
Best time for a conference call or a meeting is between 7am-8am07:00-08:00 in CT which corresponds to 7pm-8pm19:00-20:00 in IOT. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.

6:00 am06:00 Central Time (CT). Offset UTC -6:00 hours
6:00 pm18:00 Indian Chagos Time (IOT). Offset UTC +6:00 hours

6:00 am06:00 CT / 6:00 pm18:00 IOT

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Hourly time comparison
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Central Time

Central Time (CT) is a general term used to describe the areas that observe either the Central Standard Time (CST) or Central Daylight Time (CDT) in the United States and Canada. CT is not static but switches between CDT and CST.

Territories observing the time zone are primarily in North and Central America. It runs through several Mexican and U.S. states, as well as several Canadian provinces and Central American countries.

Countries using this time zone: Belize, Canada, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, United States

Principal Cities: The largest city in the CT time zone is Mexico City in Mexico, with about 12.294 million people. Other major cities in this time zone include Chicago, Houston, Puebla, Santiago de Querétaro.

French: HNC - Heure Normale du Centre

Spanish: CT - Tiempo Central Estándar, CT - Zona Centro

Map of the areas on Central Time (CT)
CT all year CT part of the year

Today all shaded areas are on CT.

CT 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 CT
  • S - short form of 'Sierra'
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

Indian Chagos Time

Offset: IOT is 6 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: British Indian Ocean Territory

Daylight Saving: Clocks in Indian Chagos Time (IOT) do not change for daylight saving time, so IOT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

IOT 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 east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Foxtrot - Military abbreviation for IOT
  • F - short form of 'Foxtrot'
Time zones with the GMT +6 offset:
  • BST - Bangladesh Standard Time
  • BDT - Bangladesh Time
  • BTT - Bhutan Time
  • F - Foxtrot Time Zone
  • IOT - Indian Chagos Time
  • KGT - Kyrgyzstan Time
  • OMST - Omsk Standard Time
  • XJT - Xinjiang Time
  • YEKST - Yekaterinburg Summer Time