ACDT to MST Converter

ACST/ACDT

Australian Central Standard Time

GMT +9:30

ACDT automatically adjusted to ACST time zone, that is in use

MDT/MST

Mountain Daylight Time

GMT -6

MST automatically adjusted to MDT time zone, that is in use

Time Difference

Australian Central Standard Time is 15 hours and 30 minutes ahead of Mountain Daylight Time
2:00 am02:00 in ACST is 10:30 am10:30 in MDT

ACDT to MST call time
Best time for a conference call or a meeting is between 9:30pm-11:30pm in ACDT which corresponds to 4am-6am in MST

2:00 am02:00 Australian Central Standard Time (ACST). Offset UTC +9:30 hours
10:30 am10:30 Mountain Daylight Time (MDT). Offset UTC -6:00 hours

2:00 am02:00 ACST / 10:30 am10:30 MDT

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

Australian Central Daylight Time

Offset: ACDT is 10 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 ACDT timezone is Adelaide from Australia with population about 1.225 million people. Other major cities in the area are Adelaide Hills, Mount Gambier, Morphett Vale, Prospect

ACDT Time Zone Geo Map — ACDT timezone map

Daylight Saving: Australian Central Daylight Time (ACDT) is a daylight saving/summer time zone, however during winter some places adjust time for one hour back and observe Australian Central Standard Time (ACST).

End: Australian Central Daylight Time (ACDT) has ended on Sunday, April 7, 2024 at 3:00 am local time and clocks were set one hour back to Sunday, April 7, 2024, 2:00 am local standard time instead. Daylight saving ends annually the on first Sunday of April

Start: Australian Central Daylight Time (ACDT) starts on Sunday, October 6, 2024 at 2:00 am local time and clocks are set one hour forward to Sunday, October 6, 2024, 3:00 am. Daylight saving starts annually the on first Sunday of October

ACDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data

+1030 - basic
+10:30 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers

+1030 - sign character (+) followed by a four digit time providing hours (10) and minutes (30) of the offset. Indicates ten hour and thirty minutes time differences to the east of the zero meridian.

IANA/Olson: Reflects ACDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems

Australia/Adelaide
Australia/Broken_Hill
Australia/South
Australia/Yancowinna

Time zones with the GMT +10:30 offset:

ACDT - Australian Central Daylight Time
LHST - Lord Howe Standard Time

Mountain Standard Time

Offset: MST is 7 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries: It is used in following countries: Canada, Mexico, United States

Principal Cities: The largest city in the MST timezone is Ciudad Juarez from Mexico with population about 1.512 million people. Other major cities in the area are Phoenix, Calgary, Chihuahua, Edmonton

French: HNR - Heure Normale des Rocheuses

Spanish: MT - Zona Pacífico

MST Time Zone Geo Map — MST 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 Mountain Daylight Time (MDT).

End: Mountain Standard Time (MST) has ended on Sunday, March 10, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, March 10, 2024, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.

Start: Mountain Standard Time (MST) starts on Sunday, November 3, 2024 at 2:00 am local time and clocks are set one hour back to Sunday, November 3, 2024, 1:00 am. Standard time starts annually the on first Sunday of November.

MST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data

-07 - basic short
-0700 - basic
-07:00 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers

-0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates seven hour and zero minutes time differences to the west of the zero meridian.

Military/NATO: Used by the U.S. military, Chinese military and others

Tango - Military abbreviation for MST
T - short form of 'Tango'

IANA/Olson: Reflects MST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems

America/Boise
America/Cambridge_Bay
America/Chihuahua
America/Creston
America/Dawson
America/Dawson_Creek
America/Denver
America/Edmonton
America/Fort_Nelson
America/Hermosillo
America/Inuvik
America/Mazatlan
America/Ojinaga
America/Phoenix
America/Shiprock
America/Whitehorse
America/Yellowknife
Canada/Mountain
Canada/Yukon
MST
MST7MDT
Mexico/BajaSur
Navajo
US/Arizona
US/Mountain

MST Abbreviation: Several time zones share MST abbreviation and it could refer to these time zones

Mountain Standard Time - UTC -7
Mauritius Standard Time - UTC +4
Moscow Standard Time - UTC +3

Time zones with the GMT -7 offset:

MST - Mountain Standard Time
PDT - Pacific Daylight Time
YST - Yukon Standard Time
T - Tango Time Zone