CRN0

JST to ART cron converter

ART is currently 12 hours behind JST. Convert ART to JST

UTC+9
UTC-3
0 21 * * *

At 21:00 every day in Buenos Aires.

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

TokyoBuenos Aires

Examples

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

Questions

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

ART is currently 12 hours behind JST. Subtract 12 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 JST) becomes 0 21 * * 0-4 in ART.

What is the time difference between JST and ART?

Japan Standard Time is UTC+9 and Argentina Time is UTC-3. Right now aRT is currently 12 hours behind JST.

Does daylight saving time affect JST to ART cron conversion?

Neither JST nor ART observes daylight saving time, so the 12 hours difference stays the same all year.

What is midnight JST in ART cron?

Midnight in JST (0 0 * * *) is 0 12 * * * in ART, on the previous day.

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