ACST to UTC Time Converter

Convert Australian Central Standard Time (ACST) to Coordinated Universal Time (UTC). Both time zones are shown live below; current offset between them is 9h 30m behind.

Adelaide · Australian Central Standard Time
06:25:29
Monday, May 11, 2026
GMT+9:30 · UTC+09:30
UTC · Coordinated Universal Time
20:55:29
Sunday, May 10, 2026
UTC · UTC+00:00

Convert a specific time

From: ACST (Adelaide)
To: UTC (UTC)
--:--

Daylight Saving status right now

ACST (Australian Central Standard Time)
Observes DST
Yes
In DST right now
No
Next spring forward
2026-10-04
Offset shift
UTC+09:30 → UTC+10:30
UTC (Coordinated Universal Time)
Observes DST
No

Heads up: ACST observes DST while UTC does not. The 9.5-hour difference shown above will shift by one hour when ACST starts or ends DST.

When can ACST and UTC meet?

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01
02
03
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08
09
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ACST
UTC
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Adelaide (ACST). Each row shows the local working-hours state in that zone for the same moment in time.
No overlap during strict 9-5 working hours; some flexibility needed.
If both sides are willing to extend to 8am-7pm, the available window is 18:00–18:00 ACST (08:30–08:30 UTC).

Hour-by-hour ACST to UTC conversion table

ACST time (Adelaide)UTC time (UTC)Status
00:00 Mon14:30 SunUTC working
01:00 Mon15:30 SunUTC working
02:00 Mon16:30 SunUTC working
03:00 Mon17:30 SunOff-hours both sides
04:00 Mon18:30 SunOff-hours both sides
05:00 Mon19:30 SunOff-hours both sides
06:00 Mon20:30 SunOff-hours both sides
07:00 Mon21:30 SunOff-hours both sides
08:00 Mon22:30 SunOff-hours both sides
09:00 Mon23:30 SunACST working
10:00 Mon00:30 MonACST working
11:00 Mon01:30 MonACST working
12:00 Mon02:30 MonACST working
13:00 Mon03:30 MonACST working
14:00 Mon04:30 MonACST working
15:00 Mon05:30 MonACST working
16:00 Mon06:30 MonACST working
17:00 Mon07:30 MonOff-hours both sides
18:00 Mon08:30 MonOff-hours both sides
19:00 Mon09:30 MonUTC working
20:00 Mon10:30 MonUTC working
21:00 Mon11:30 MonUTC working
22:00 Mon12:30 MonUTC working
23:00 Mon13:30 MonUTC working

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

Australian Central Standard Time (ACST)
IANA identifier
Australia/Adelaide
Current UTC offset
UTC+09:30
Current abbreviation
GMT+9:30
Major cities in this zone
Adelaide
Coordinated Universal Time (UTC)
IANA identifier
UTC
Current UTC offset
UTC+00:00
Current abbreviation
UTC
Major cities in this zone
UTC

Sun today in Adelaide and UTC

Adelaide
Sunrise
07:00
Sunset
17:26
Solar noon
12:13
Daylight
10h 25m

Related converters

UTC to ACST (reverse)ACST to ESTACST to PSTACST to GMTACST to CETACST to ISTEST to UTCPST to UTCGMT to UTCCET to UTCIST to UTC
Looking for local time? See time in Adelaide or time in UTC.

Frequently asked questions

What is the time difference between ACST and UTC right now?+
UTC (Coordinated Universal Time) is currently 9h 30m behind ACST (Australian Central Standard Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does ACST or UTC observe daylight saving time?+
ACST: observes daylight saving time. UTC: does not observe daylight saving time.
When is the best time to schedule a meeting between ACST and UTC?+
Standard 9-5 hours do not overlap. Extending to 8am-7pm gives a window of 18:00–18:00 ACST (08:30–08:30 UTC).
What time is it in UTC when it is 12:00 noon in Adelaide?+
When it is 12:00 Mon in Adelaide (ACST), it is 02:30 Mon in UTC (UTC).
Which IANA time zone identifiers are used for ACST and UTC?+
ACST maps to "Australia/Adelaide" in the IANA database. UTC maps to "UTC". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Adelaide ahead of or behind UTC?+
Whether Adelaide (ACST) is ahead of or behind UTC (UTC) depends on the current UTC offsets. Right now UTC is 9h 30m behind ACST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for ACST and UTC?+
ACST is UTC+09:30 (GMT+9:30) and UTC is UTC+00:00 (UTC). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both ACST and UTC?+
Not during a strict 9am-5pm window. If both sides flex to 8am-7pm, the available meeting window between ACST and UTC is 18:00–18:00 ACST.