CRN0

AKST to JST cron converter

JST is currently 18 hours ahead of AKST. Convert JST to AKST

UTC-9
UTC+9
0 3 * * *

At 03:00 every day in Tokyo.

Show timeline and next runs
Anchorage
00061218
00061218
Tokyo
Each amber mark is a run time. The top strip shows Anchorage local time and the bottom strip shows Tokyo 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 Anchorage.

AnchorageTokyo

Examples

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

Questions

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

JST is currently 18 hours ahead of AKST. Add 18 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 AKST) becomes 0 3 * * 2-6 in JST.

What is the time difference between AKST and JST?

Alaska Time is UTC-9 / UTC-8 and Japan Standard Time is UTC+9. Right now jST is currently 18 hours ahead of AKST.

Does daylight saving time affect AKST to JST cron conversion?

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

What is midnight AKST in JST cron?

Midnight in AKST (0 0 * * *) is 0 18 * * * in JST.

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