CRN0

AST to AKST cron converter

AKST is currently 5 hours behind AST. Convert AKST to AST

UTC-4
UTC-9
0 4 * * *

At 04:00 every day in Anchorage.

Show timeline and next runs
Halifax
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Anchorage
Each amber mark is a run time. The top strip shows Halifax local time and the bottom strip shows Anchorage 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.

HalifaxAnchorage

Examples

ASTAKST
0 9 * * *
0 4 * * *
0 9 * * 1-5
0 4 * * 1-5
*/15 * * * *
*/15 * * * *
0 0 * * *
0 19 * * *
30 2 * * 0
30 21 * * 6
0 0 1 * *
0 19 31 * *
0 */6 * * *
0 1-23/6 * * *
0 17 * * 5
0 12 * * 5
Every hour of the day
0 0 * * *0 19 * * *day before
0 1 * * *0 20 * * *day before
0 2 * * *0 21 * * *day before
0 3 * * *0 22 * * *day before
0 4 * * *0 23 * * *day before
0 5 * * *0 0 * * *
0 6 * * *0 1 * * *
0 7 * * *0 2 * * *
0 8 * * *0 3 * * *
0 9 * * *0 4 * * *
0 10 * * *0 5 * * *
0 11 * * *0 6 * * *
0 12 * * *0 7 * * *
0 13 * * *0 8 * * *
0 14 * * *0 9 * * *
0 15 * * *0 10 * * *
0 16 * * *0 11 * * *
0 17 * * *0 12 * * *
0 18 * * *0 13 * * *
0 19 * * *0 14 * * *
0 20 * * *0 15 * * *
0 21 * * *0 16 * * *
0 22 * * *0 17 * * *
0 23 * * *0 18 * * *

Questions

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

AKST is currently 5 hours behind AST. Subtract 5 hours to the hour field, and shift the day-of-week if the time crosses midnight. For example, 0 9 * * 1-5 (weekdays at 09:00 AST) becomes 0 4 * * 1-5 in AKST.

What is the time difference between AST and AKST?

Atlantic Time is UTC-4 / UTC-3 and Alaska Time is UTC-9 / UTC-8. Right now aKST is currently 5 hours behind AST.

Does daylight saving time affect AST to AKST cron conversion?

AST and AKST observe daylight saving time, so the difference between AST (UTC-4 / UTC-3) and AKST (UTC-9 / UTC-8) changes during the year. Re-check your converted cron after each DST change.

What is midnight AST in AKST cron?

Midnight in AST (0 0 * * *) is 0 19 * * * in AKST, on the previous day.

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