Cron expression for every quarter

About 0 0 1 1,4,7,10 *

0 0 1 1,4,7,10 * — Runs at midnight on the first day of January, April, July, and October.

Cron reads the five fields as minute hour day month weekday. For this schedule that breaks down as:

• 0 — minute
• 0 — hour
• 1 — day of month
• 1,4,7,10 — month
• * — day of week (every value)

Monthly & yearly schedules

• every month0 0 1 * *
• the first of the month at 9 AM0 9 1 * *
• the 15th of every month0 0 15 * *
• every year0 0 1 1 *
• the last day of the month0 0 28-31 * *

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