CRN0

KST to CST cron converter

CST is currently 15 hours behind KST. Convert CST to KST

UTC+9
UTC-6
0 18 * * *

At 18:00 every day in Chicago.

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

SeoulChicago

Examples

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

Questions

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

CST is currently 15 hours behind KST. Subtract 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 KST) becomes 0 18 * * 0-4 in CST.

What is the time difference between KST and CST?

Korea Standard Time is UTC+9 and Central Time is UTC-6 / UTC-5. Right now cST is currently 15 hours behind KST.

Does daylight saving time affect KST to CST cron conversion?

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

What is midnight KST in CST cron?

Midnight in KST (0 0 * * *) is 0 9 * * * in CST, on the previous day.

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