Iowa, USA
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

CDT (Central Daylight Time) is 14 hours and 30 minutes behind Australian Central Standard Time
10:30 am10:30 in Davenport, IA, USA is 1:00 am01:00 in ACST

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

10:30 am10:30 CDT (Central Daylight Time) (Davenport, IA, USA). Offset UTC -5:00 hours
1:00 am01:00 Australian Central Standard Time (ACST). Offset UTC +9:30 hours

10:30 am10:30 Davenport, IA, USA / 1:00 am01:00 ACST

Davenport, IA, USA 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

Davenport Information

Time Zone

Abbreviation / Name
CDT - Central Daylight Time
UTC / GMT Offset
-5:00 hours during Central Daylight Time, currently in use.

Davenport Facts

Alternative Names
DVN, Davehnport, Davenport, Dehvenport, da wen bo te, dabenpoto, daebeunpoteu, dafnbwrt, dbnpwrt, devhenaporta, dwnpwrt aywwa, Давенпорт, Давэнпорт, Дэвенпорт, דבנפורט, دافنبورت, دونپورت، آیووا, ڈیونپورٹ، آئیووا, डॅव्हेनपोर्ट, แดเวนพอร์ต, ダベンポート, 達文波特, 대븐포트
Dollar (USD)
Geographic Coordinates
41° 31' N Latitude / 90° 34' W Longitude
International Dialing Code

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 2, 2022 at 2:00 am local time and clocks were set one hour forward to Sunday, October 2, 2022, 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 2, 2023 at 3:00 am local time and clocks are set one hour back to Sunday, April 2, 2023, 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