CRN0

AST to ACST cron converter

ACST is currently 14 hours 30 minutes ahead of AST. Convert ACST to AST

UTC-4
UTC+10:30
30 23 * * *

At 23:30 every day in Adelaide.

Show timeline and next runs
Halifax
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Adelaide
Each amber mark is a run time. The top strip shows Halifax local time and the bottom strip shows Adelaide local time, lined up so the same moment sits on the same vertical line. Shaded areas are night hours.

Same moment as “at 09:00 every day” in Halifax.

HalifaxAdelaide

Examples

ASTACST
0 9 * * *
30 23 * * *
0 9 * * 1-5
30 23 * * 1-5
*/15 * * * *
*/15 * * * *
0 0 * * *
30 14 * * *
30 2 * * 0
0 17 * * 0
0 0 1 * *
30 14 1 * *
0 */6 * * *
30 2-23/6 * * *
0 17 * * 5
30 7 * * 6
Every hour of the day
0 0 * * *30 14 * * *
0 1 * * *30 15 * * *
0 2 * * *30 16 * * *
0 3 * * *30 17 * * *
0 4 * * *30 18 * * *
0 5 * * *30 19 * * *
0 6 * * *30 20 * * *
0 7 * * *30 21 * * *
0 8 * * *30 22 * * *
0 9 * * *30 23 * * *
0 10 * * *30 0 * * *next day
0 11 * * *30 1 * * *next day
0 12 * * *30 2 * * *next day
0 13 * * *30 3 * * *next day
0 14 * * *30 4 * * *next day
0 15 * * *30 5 * * *next day
0 16 * * *30 6 * * *next day
0 17 * * *30 7 * * *next day
0 18 * * *30 8 * * *next day
0 19 * * *30 9 * * *next day
0 20 * * *30 10 * * *next day
0 21 * * *30 11 * * *next day
0 22 * * *30 12 * * *next day
0 23 * * *30 13 * * *next day

Questions

How do I convert a cron expression from AST to ACST?

ACST is currently 14 hours 30 minutes ahead of AST. Add 14 hours 30 minutes to the hour and minute field, and shift the day-of-week if the time crosses midnight. For example, 0 9 * * 1-5 (weekdays at 09:00 AST) becomes 30 23 * * 1-5 in ACST.

What is the time difference between AST and ACST?

Atlantic Time is UTC-4 / UTC-3 and Australian Central Time is UTC+9:30 / UTC+10:30. Right now aCST is currently 14 hours 30 minutes ahead of AST.

Does daylight saving time affect AST to ACST cron conversion?

AST and ACST observe daylight saving time, so the difference between AST (UTC-4 / UTC-3) and ACST (UTC+9:30 / UTC+10:30) changes during the year. Re-check your converted cron after each DST change.

What is midnight AST in ACST cron?

Midnight in AST (0 0 * * *) is 30 14 * * * in ACST.

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