CRN0

UTC to JST cron converter

JST is currently 9 hours ahead of UTC. Convert JST to UTC

UTC+0
UTC+9
0 18 * * *

At 18:00 every day in Tokyo.

Show timeline and next runs
UTC
00061218
00061218
Tokyo
Each amber mark is a run time. The top strip shows UTC 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 UTC.

UTCTokyo

Examples

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

Questions

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

JST is currently 9 hours ahead of UTC. Add 9 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 UTC) becomes 0 18 * * 1-5 in JST.

What is the time difference between UTC and JST?

Coordinated Universal Time is UTC+0 and Japan Standard Time is UTC+9. Right now jST is currently 9 hours ahead of UTC.

Does daylight saving time affect UTC to JST cron conversion?

Neither UTC nor JST observes daylight saving time, so the 9 hours difference stays the same all year.

What is midnight UTC in JST cron?

Midnight in UTC (0 0 * * *) is 0 9 * * * in JST.

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