CT to AEST Converter
Time Difference
Central Daylight Time is 15 hours behind Australian Eastern Standard Time
6:00 pm18:00 in CDT is 9:00 am09:00 in AEST
CT to AEST call time
Best time for a conference call or a meeting is between 5am-7am in CT which corresponds to 9pm-11pm in AEST
6:00 pm18:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
9:00 am09:00 Australian Eastern Standard Time (AEST). Offset UTC +10:00 hours
6:00 pm18:00 CDT / 9:00 am09:00 AEST
CT | AEST |
---|---|
12am (midnight) | 3pm |
1am | 4pm |
2am | 5pm |
3am | 6pm |
4am | 7pm |
5am | 8pm |
6am | 9pm |
7am | 10pm |
8am | 11pm |
9am | 12am (midnight) |
10am | 1am |
11am | 2am |
12pm (noon) | 3am |
1pm | 4am |
2pm | 5am |
3pm | 6am |
4pm | 7am |
5pm | 8am |
6pm | 9am |
7pm | 10am |
8pm | 11am |
9pm | 12pm (noon) |
10pm | 1pm |
11pm | 2pm |
0:00 | 15:00 |
1:00 | 16:00 |
2:00 | 17:00 |
3:00 | 18:00 |
4:00 | 19:00 |
5:00 | 20:00 |
6:00 | 21:00 |
7:00 | 22:00 |
8:00 | 23:00 |
9:00 | 0:00 |
10:00 | 1:00 |
11:00 | 2:00 |
12:00 | 3:00 |
13:00 | 4:00 |
14:00 | 5:00 |
15:00 | 6:00 |
16:00 | 7:00 |
17:00 | 8:00 |
18:00 | 9:00 |
19:00 | 10:00 |
20:00 | 11:00 |
21:00 | 12:00 |
22:00 | 13:00 |
23:00 | 14:00 |
Central Time
Central Time (PT) 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: 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
Central Time (PT) 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: 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
CT 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 CT
- S - short form of 'Sierra'
- Central Time - UTC -6
- Chuuk Time - UTC +10
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone
Australian Eastern Standard Time
Offset: AEST is 10 hours ahead Greenwich Mean Time (GMT) and is used in Australia
Countries: It is used in following countries: Australia
Principal Cities: The largest city in the AEST timezone is Sydney from Australia with population about 4.627 million people. Other major cities in the area are Melbourne, Brisbane, Gold Coast, Canberra

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 Australian Eastern Daylight Time (AEDT).
Start: Australian Eastern Standard Time (AEST) started on Sunday, April 6, 2025 at 3:00 am local time and clocks were set one hour back to Sunday, April 6, 2025, 2:00 am. Standard time starts annually the on first Sunday of April.
End: Australian Eastern Standard Time (AEST) ends on Sunday, October 5, 2025 at 2:00 am local time and clocks are set one hour forward to Sunday, October 5, 2025, 3:00 am local daylight time instead. Standard time starts annually the on first Sunday of October.
Australian Eastern Standard Time (AEST) is used in Queensland, Victoria, Tasmania, New South Wales (except Broken Hill), Australian Capital Territory and in folling major cities Brisbane, Sydney, Melbourne, Hobart, Canberra
Only part of Australia observe daylight saving. It is used in New South Wales, Victoria, South Australia, Tasmania, and the Australian Capital Territory. Daylight saving is not observed in Queensland, Western Australia or the Northern Territory.
AEST representations, usage and related time zones
- +10 - basic short
- +1000 - basic
- +10:00 - extended
- +1000 - sign character (+) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates ten hour and zero minutes time differences to the east of the zero meridian.
- Kilo - Military abbreviation for AEST
- K - short form of 'Kilo'
- Antarctica/Macquarie
- Australia/ACT
- Australia/Brisbane
- Australia/Canberra
- Australia/Currie
- Australia/Hobart
- Australia/Lindeman
- Australia/Melbourne
- Australia/NSW
- Australia/Queensland
- Australia/Sydney
- Australia/Tasmania
- Australia/Victoria
- AEST - Australian Eastern Standard Time
- CHUT - Chuuk Time
- ChST - Chamorro Standard Time
- K - Kilo Time Zone
- KDT - Korea Daylight Time
- PGT - Papua New Guinea Time
- VLAT - Vladivostok Time
- YAKST - Yakutsk Summer Time
- YAPT - Yap Time