CRN0

KST to HST cron converter

HST is currently 19 hours behind KST. Convert HST to KST

UTC+9
UTC-10
0 14 * * *

At 14:00 every day in Honolulu.

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

SeoulHonolulu

Examples

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

Questions

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

HST is currently 19 hours behind KST. Subtract 19 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 14 * * 0-4 in HST.

What is the time difference between KST and HST?

Korea Standard Time is UTC+9 and Hawaii Time is UTC-10. Right now hST is currently 19 hours behind KST.

Does daylight saving time affect KST to HST cron conversion?

Neither KST nor HST observes daylight saving time, so the 19 hours difference stays the same all year.

What is midnight KST in HST cron?

Midnight in KST (0 0 * * *) is 0 5 * * * in HST, on the previous day.

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