CRN0

HST to SAST cron converter

SAST is currently 12 hours ahead of HST. Convert SAST to HST

UTC-10
UTC+2
0 21 * * *

At 21:00 every day in Johannesburg.

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

HonoluluJohannesburg

Examples

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

Questions

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

SAST is currently 12 hours ahead of HST. Add 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 HST) becomes 0 21 * * 1-5 in SAST.

What is the time difference between HST and SAST?

Hawaii Time is UTC-10 and South Africa Standard Time is UTC+2. Right now sAST is currently 12 hours ahead of HST.

Does daylight saving time affect HST to SAST cron conversion?

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

What is midnight HST in SAST cron?

Midnight in HST (0 0 * * *) is 0 12 * * * in SAST.

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