CRN0

AST to MST cron converter

MST is currently 3 hours behind AST. Convert MST to AST

UTC-4
UTC-7
0 6 * * *

At 06:00 every day in Denver.

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

HalifaxDenver

Examples

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

Questions

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

MST is currently 3 hours behind AST. Subtract 3 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 AST) becomes 0 6 * * 1-5 in MST.

What is the time difference between AST and MST?

Atlantic Time is UTC-4 / UTC-3 and Mountain Time is UTC-7 / UTC-6. Right now mST is currently 3 hours behind AST.

Does daylight saving time affect AST to MST cron conversion?

AST and MST observe daylight saving time, so the difference between AST (UTC-4 / UTC-3) and MST (UTC-7 / UTC-6) changes during the year. Re-check your converted cron after each DST change.

What is midnight AST in MST cron?

Midnight in AST (0 0 * * *) is 0 21 * * * in MST, on the previous day.

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