CRN0

MST to AST cron converter

AST is currently 3 hours ahead of MST. Convert AST to MST

UTC-7
UTC-4
0 12 * * *

At 12:00 every day in Halifax.

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

DenverHalifax

Examples

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

Questions

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

AST is currently 3 hours ahead of MST. Add 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 MST) becomes 0 12 * * 1-5 in AST.

What is the time difference between MST and AST?

Mountain Time is UTC-7 / UTC-6 and Atlantic Time is UTC-4 / UTC-3. Right now aST is currently 3 hours ahead of MST.

Does daylight saving time affect MST to AST cron conversion?

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

What is midnight MST in AST cron?

Midnight in MST (0 0 * * *) is 0 3 * * * in AST.

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