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CT/CDT
Central Time
GMT -5
12am
3am
6am
9am
12pm
3pm
6pm
9pm
IOT
Indian Chagos Time
GMT +6
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

7:00 am07:00 CDT (UTC-5), Oct 12, 2026 = 6:00 pm18:00 IOT (UTC+6), Oct 12, 2026

CDT is 11 hours behind IOT.

How the time difference changes

For most of the year, CT is 11 hours behind IOT. At other times of the year, CT is 12 hours behind IOT.

For most of the year, working hours of 9:00 am to 5:00 pm in CT correspond to 8:00 pm to 4:00 am (next day) in IOT. At other times of the year, working hours of 9:00 am to 5:00 pm in CT correspond to 9:00 pm to 5:00 am (next day) in IOT.For most of the year, working hours of 09:00 to 17:00 in CT correspond to 20:00 to 04:00 (next day) in IOT. At other times of the year, working hours of 09:00 to 17:00 in CT correspond to 21:00 to 05:00 (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 Daylight Time is 11 hours behind Indian Chagos Time.
7:00 am07:00 in CDT is 6:00 pm18:00 in IOT

CDT to IOT call time
Best time for a conference call or a meeting is between 7am-8am07:00-08:00 in CDT which corresponds to 6pm-7pm18:00-19:00 in IOT

7:00 am07:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
6:00 pm18:00 Indian Chagos Time (IOT). Offset UTC +6:00 hours

7:00 am07:00 CDT / 6:00 pm18:00 IOT

CTIOT
12:00am11:00am
1:00am12:00pm
2:00am1:00pm
3:00am2:00pm
4:00am3:00pm
5:00am4:00pm
6:00am5:00pm
7:00am6:00pm
8:00am7:00pm
9:00am8:00pm
10:00am9:00pm
11:00am10:00pm
12:00pm11:00pm
1:00pm12:00am
2:00pm1:00am
3:00pm2:00am
4:00pm3:00am
5:00pm4:00am
6:00pm5:00am
7:00pm6:00am
8:00pm7:00am
9:00pm8:00am
10:00pm9:00am
11:00pm10:00am
00:0011:00
01:0012:00
02:0013:00
03:0014:00
04:0015:00
05:0016:00
06:0017:00
07:0018:00
08:0019:00
09:0020:00
10:0021:00
11:0022:00
12:0023:00
13:0000:00
14:0001:00
15:0002:00
16:0003:00
17:0004:00
18:0005:00
19:0006:00
20:0007:00
21:0008:00
22:0009:00
23:0010:00

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, 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

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 Greenwich Mean Time (GMT) and is used in Indian Ocean

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 Time Zone Geo Map
IOT timezone map

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:
  • ALMT - Alma-Ata Time
  • 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
  • QYZT - Qyzylorda Time
  • XJT - Xinjiang Time
  • YEKST - Yekaterinburg Summer Time