CRN0

NZST to AST cron converter

AST is currently 17 hours behind NZST. Convert AST to NZST

UTC+13
UTC-4
0 16 * * *

At 16:00 every day in Halifax.

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

AucklandHalifax

Examples

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

Questions

How do I convert a cron expression from NZST to AST?

AST is currently 17 hours behind NZST. Subtract 17 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 NZST) becomes 0 16 * * 0-4 in AST.

What is the time difference between NZST and AST?

New Zealand Time is UTC+12 / UTC+13 and Atlantic Time is UTC-4 / UTC-3. Right now aST is currently 17 hours behind NZST.

Does daylight saving time affect NZST to AST cron conversion?

NZST and AST observe daylight saving time, so the difference between NZST (UTC+12 / UTC+13) and AST (UTC-4 / UTC-3) changes during the year. Re-check your converted cron after each DST change.

What is midnight NZST in AST cron?

Midnight in NZST (0 0 * * *) is 0 7 * * * in AST, on the previous day.

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