CRN0

CST to KST cron converter

KST is currently 15 hours ahead of CST. Convert KST to CST

UTC-6
UTC+9
0 0 * * *

At 00:00 every day in Seoul.

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

ChicagoSeoul

Examples

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

Questions

How do I convert a cron expression from CST to KST?

KST is currently 15 hours ahead of CST. Add 15 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 CST) becomes 0 0 * * 2-6 in KST.

What is the time difference between CST and KST?

Central Time is UTC-6 / UTC-5 and Korea Standard Time is UTC+9. Right now kST is currently 15 hours ahead of CST.

Does daylight saving time affect CST to KST cron conversion?

CST observes daylight saving time, so the difference between CST (UTC-6 / UTC-5) and KST (UTC+9) changes during the year. Re-check your converted cron after each DST change.

What is midnight CST in KST cron?

Midnight in CST (0 0 * * *) is 0 15 * * * in KST.

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