CRN0

SAST to HST cron converter

HST is currently 12 hours behind SAST. Convert HST to SAST

UTC+2
UTC-10
0 21 * * *

At 21:00 every day in Honolulu.

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

JohannesburgHonolulu

Examples

SASTHST
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 SAST to HST?

HST is currently 12 hours behind SAST. 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 SAST) becomes 0 21 * * 0-4 in HST.

What is the time difference between SAST and HST?

South Africa Standard Time is UTC+2 and Hawaii Time is UTC-10. Right now hST is currently 12 hours behind SAST.

Does daylight saving time affect SAST to HST cron conversion?

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

What is midnight SAST in HST cron?

Midnight in SAST (0 0 * * *) is 0 12 * * * in HST, on the previous day.

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