Cuba
CST
ACST
Australian Central Standard Time
GMT +9:30
ACST is NOT in use by many locations
ACDT (Australian Central Daylight Time) is used instead. Switch to ACDT time zone or select one of the cities Adelaide, Darwin, Adelaide Hills) for automatic timezone change.

Time Difference

CST (Colombia Standard Time) is 14 hours and 30 minutes behind Australian Central Standard Time
4:00 pm16:00 in Guantanamo, Cuba is 6:30 am06:30 in ACST

Guantanamo to ACST call time
Best time for a conference call or a meeting is between 5:30am-7:30am in Guantanamo which corresponds to 8pm-10pm in ACST

4:00 pm16:00 CST (Colombia Standard Time) (Guantanamo, Cuba). Offset UTC -5:00 hours
6:30 am06:30 Australian Central Standard Time (ACST). Offset UTC +9:30 hours

4:00 pm16:00 Guantanamo, Cuba / 6:30 am06:30 ACST

Guantanamo, Cuba ACST
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

Guantanamo Information

Time Zone

Abbreviation / Name
CST - Colombia Standard Time
CDT - Cuba Daylight Time
UTC / GMT Offset
-5:00 hours during Colombia Standard Time, currently in use.
-4:00 hours during Cuba Daylight Time.
Daylight Saving Time Change
+1:00 hour - DST is NOT in use
Daylight Saving Time Starts
Daylight saving time clock moves forward for one hour from 12am to 1am Sunday, March 10, 2024 at 12:00 am local time. DST starts annually the on second Sunday of March. Clocks are turned forward 1 hour to Sunday, March 10, 2024, 1:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Daylight saving time clock moves back for one hour from 1am to 12am Sunday, November 3, 2024 at 1:00 am local time. DST ends annually the on first Sunday of November. Clocks are turned backward 1 hour to Sunday, November 3, 2024, 12:00 am local standard time instead. Also called Fall Back or switch to Winter Time.

Guantanamo Facts

Country
Cuba
Alternative Names
GAO, Guantanama, Guantanamo, Guantánamo, Guatanamo, guantanamo, Гуантанама, Гуантанамо, גואנטנמו, グアンタナモ
Population
272,801
Currency
Peso (CUP)
Geographic Coordinates
20° 08' N Latitude / 75° 12' W Longitude
International Dialing Code
+53

Australian Central Standard Time

Offset: ACST is 9 hours and 30 minutes 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 ACST timezone is Adelaide from Australia with population about 1.225 million people. Other major cities in the area are Darwin, Adelaide Hills, Alice Springs, Palmerston

ACST Time Zone Geo Map
ACST timezone map

Daylight Saving: This is a standard time zone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Australian Central Daylight Time (ACDT).

Daylight saving time clock moves forward for one hour from 2am to 3amEnd: Australian Central Standard Time (ACST) has ended on Sunday, October 6, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, October 6, 2024, 3:00 am local daylight time instead. Standard time ends annually the on first Sunday of October.

Daylight saving time clock moves back for one hour from 3am to 2amStart: Australian Central Standard Time (ACST) starts on Sunday, April 6, 2025 at 3:00 am local time and clocks are set one hour back to Sunday, April 6, 2025, 2:00 am. Standard time starts annually the on first Sunday of April.

ACST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0930 - basic
  • +09:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0930 - sign character (+) followed by a four digit time providing hours (09) and minutes (30) of the offset. Indicates nine hour and thirty minutes time differences to the east of the zero meridian.
IANA/Olson: Reflects ACST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Australia/Adelaide
  • Australia/Broken_Hill
  • Australia/Darwin
  • Australia/North
  • Australia/South
  • Australia/Yancowinna