Offset
The time difference between Australian Central Time and Indochina Time is 2.5 hours.
Australian Central Time (ACST) is ahead of Indochina Time (ICT).
ACST: UTC+9:30
ICT: UTC+7
Neither Australian Central Time nor Indochina Time is currently observing daylight saving time.
When to schedule
Business-hours overlap: 12 PM–5 PM in Australian Central Time (9 AM–2 PM in Indochina Time).
Both teams are in working hours during this window on weekdays.
Suggested time: 2:00 PM Australian Central Time (11:30 AM Indochina Time).
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Australia
- New Year's DayThu, Jan 1
- Australia DayMon, Jan 26
- Good FridayFri, Apr 3
- Easter MondayMon, Apr 6
- Christmas DayFri, Dec 25
- St. Stephen's DayMon, Dec 28
About these zones
Australian Central Time is also known as ACST, or ACDT. To call Australia, dial +61.
Indochina Time is also known as ICT. To call Thailand, dial +66.
Indochina Time is approximately 4,200 miles northwest of Australian Central Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| ACST | ICT | Day |
|---|---|---|
| 12:00 am | 9:30 pm | -1 day |
| 1:00 am | 10:30 pm | -1 day |
| 2:00 am | 11:30 pm | -1 day |
| 3:00 am | 12:30 am | Same day |
| 4:00 am | 1:30 am | Same day |
| 5:00 am | 2:30 am | Same day |
| 6:00 am | 3:30 am | Same day |
| 7:00 am | 4:30 am | Same day |
| 8:00 am | 5:30 am | Same day |
| 9:00 am | 6:30 am | Same day |
| 10:00 am | 7:30 am | Same day |
| 11:00 am | 8:30 am | Same day |
| 12:00 pm | 9:30 am | Same day |
| 1:00 pm | 10:30 am | Same day |
| 2:00 pm | 11:30 am | Same day |
| 3:00 pm | 12:30 pm | Same day |
| 4:00 pm | 1:30 pm | Same day |
| 5:00 pm | 2:30 pm | Same day |
| 6:00 pm | 3:30 pm | Same day |
| 7:00 pm | 4:30 pm | Same day |
| 8:00 pm | 5:30 pm | Same day |
| 9:00 pm | 6:30 pm | Same day |
| 10:00 pm | 7:30 pm | Same day |
| 11:00 pm | 8:30 pm | Same day |
Daylight saving time
Australian Central Time observes daylight saving time; Indochina Time does not. The offset between the two zones changes when Australian Central Time transitions: on Sunday, October 4, 2026, clocks spring forward from ACST to ACDT.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 7:18 AM
- Sunset
- 5:12 PM
- Day length
- 9h 55m
- Sunrise
- 5:50 AM
- Sunset
- 6:44 PM
- Day length
- 12h 54m
Daylight overlap: 8h 52m — 8:20 AM–5:12 PM in Australian Central Time (5:50 AM–2:42 PM in Indochina Time). Both locations are in daylight during this window.
Cities in these zones
Cities in Australian Central Time
Cities in Indochina Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Australian Central Time
- ADL
Airports in Indochina Time
- HAN
- BKK
- DMK
- HPH
Related conversions
Common conversions
- What is 9:00 am ACST in ICT?
- 9:00 am ACST is 6:30 am ICT.
- What is 12:00 pm ACST in ICT?
- 12:00 pm ACST is 9:30 am ICT.
- What is 12:30 pm ACST in ICT?
- 12:30 pm ACST is 10:00 am ICT.
- What is 2:00 pm ACST in ICT?
- 2:00 pm ACST is 11:30 am ICT.
- What is 5:00 pm ACST in ICT?
- 5:00 pm ACST is 2:30 pm ICT.
- What is 11:30 pm ACST in ICT?
- 11:30 pm ACST is 9:00 pm ICT.