Utah, USA
MDT
ACST
Australian Central Standard Time
GMT +9:30

Time Difference

MDT (Mountain Daylight Time) is 15 hours and 30 minutes behind Australian Central Standard Time
11:30 pm23:30 in Salt Lake City, UT, USA is 3:00 pm15:00 in ACST

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

11:30 pm23:30 MDT (Mountain Daylight Time) (Salt Lake City, UT, USA). Offset UTC -6:00 hours
3:00 pm15:00 Australian Central Standard Time (ACST). Offset UTC +9:30 hours

11:30 pm23:30 Salt Lake City, UT, USA / 3:00 pm15:00 ACST

Salt Lake City, UT, USA ACST
12am (midnight) 3:30 pm
1am 4:30 pm
2am 5:30 pm
3am 6:30 pm
4am 7:30 pm
5am 8:30 pm
6am 9:30 pm
7am 10:30 pm
8am 11:30 pm
9am 12:30 am
10am 1:30 am
11am 2:30 am
12pm (noon) 3:30 am
1pm 4:30 am
2pm 5:30 am
3pm 6:30 am
4pm 7:30 am
5pm 8:30 am
6pm 9:30 am
7pm 10:30 am
8pm 11:30 am
9pm 12:30 pm
10pm 1:30 pm
11pm 2:30 pm
0:00 15:30
1:00 16:30
2:00 17:30
3:00 18:30
4:00 19:30
5:00 20:30
6:00 21:30
7:00 22:30
8:00 23:30
9:00 0:30
10:00 1:30
11:00 2:30
12:00 3:30
13:00 4:30
14:00 5:30
15:00 6:30
16:00 7:30
17:00 8:30
18:00 9:30
19:00 10:30
20:00 11:30
21:00 12:30
22:00 13:30
23:00 14:30

Salt Lake City Information

Time Zone

Abbreviation / Name
MDT - Mountain Daylight Time
HAR - Heure Avancée des Rocheuses
UTC / GMT Offset
-6:00 hours during Mountain Daylight Time, currently in use.
-6:00 hours during Heure Avancée des Rocheuses.
Daylight Saving Time Change
0:00 hours - DST is in use
Daylight Saving Time Starts
Daylight saving time clock moves forward for one hour from 2am to 3am Sunday, March 9, 2025 at 2:00 am local time. DST starts annually the on second Sunday of March. Clocks are turned forward 0 hour to Sunday, March 9, 2025, 3:00 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 2am to 1am Sunday, November 2, 2025 at 2:00 am local time. DST ends annually the on first Sunday of November. Clocks are turned backward 0 hour to Sunday, November 2, 2025, 1:00 am local standard time instead. Also called Fall Back or switch to Winter Time.

Salt Lake City Facts

Country
USA
State
Utah
Alternative Names
Cathair Salt Lake, Civitas Lacus Salsi, Kota Salt Lake, Lungsod ng Salt Lake, SLC, Sallaga Urbo, Salt Lake, Salt Lake Ceety, Salt Lake City, Sol Lek Siti, Solt Leik Sites, Solt Leik Siti, Solt Leik Sitis, Solt Leik Sitės, Solt Lejk Siti, Solt Leyk Siti, Solt-Lehjk-Sici, Solt-Lejk-Siti, Soltleiksitija, Thanh pho Salt Lake, Thành phố Salt Lake, calt lek nakaram, salata leka siti, salt lek siti, salt lyk, salt lyk syty, salta leka siti, solta leka siti, solteuleikeusiti, sorutoreikushiti, swlt lyyq syty, sxltleksiti, yan hu cheng, Σολτ Λέικ Σίτι, Солт Лейк Сити, Солт Лејк Сити, Солт-Лейк-Сити, Солт-Лейк-Сіті, Солт-Лэйк-Сіці, Սոլթ Լեյք Սիթի, סולט לייק סיטי, سالت ليك, سالت لیک سیتی, سالت‌لیک‌سیتی, سالٹ لیک سٹی, سالٹ لیک سٹی، یوٹاہ, साल्ट लेक सिटी, साल्ट् लेक् सिटी, सॉल्ट लेक सिटी, ਸਾਲਟ ਲੇਕ ਸਿਟੀ, சால்ட் லேக் நகரம், ಸಾಲ್ಟ್ ಲೇಕ್ ಸಿಟಿ, ซอลต์เลกซิตี, ཚྭ་མཚོའི་གྲོང་ཁྱེར།, სოლტ-ლეიკ-სიტი, ソルトレイクシティ, 盐湖城, 鹽湖城, 솔트레이크시티
Population
192,672
Currency
Dollar (USD)
Geographic Coordinates
40° 45' N Latitude / 111° 53' W Longitude
International Dialing Code
+1

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 timezone, 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 back for one hour from 3am to 2amStart: Australian Central Standard Time (ACST) 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.

Daylight saving time clock moves forward for one hour from 2am to 3amEnd: Australian Central Standard Time (ACST) 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.

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