Cron: first day of every month

First day of every month: 0 0 1 * *

Runs at 00:00 on the 1st of each month — invoices, monthly reports, log rotation. Same as @monthly. Cron has no "last day of the month"; a common workaround is 0 0 28-31 * * [ "$(date -d tomorrow +\%d)" = 01 ] && command.

Build a different schedule with the crontab generator.

Other common values

• Every minute — * * * * *
• Every 5 minutes — */5 * * * *
• Every 15 minutes — */15 * * * *
• Every 30 minutes — */30 * * * *
• Every hour — 0 * * * *
• Every 6 hours — 0 */6 * * *
• Every day at midnight — 0 0 * * *
• Weekdays at 9 AM — 0 9 * * 1-5
• Every Sunday at midnight — 0 0 * * 0