Cron expression for the last day of the month

About 0 0 28-31 * *

0 0 28-31 * * — Standard cron has no 'last day' token. This fires on the 28th through 31st, so your script must check whether today is actually the final day before doing any work.

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

• 0 — minute
• 0 — hour
• 28-31 — day of month
• * — month (every value)
• * — day of week (every value)

Monthly & yearly schedules

• the 15th of every month0 0 15 * *
• every quarter0 0 1 1,4,7,10 *
• every year0 0 1 1 *

Build a custom cron expression →