Describe a Schedule in English and Let Claude Write the Cron Expression

Cron syntax is one of those things you look up every single time. Stop Googling — describe the schedule in English and Claude writes the expression.

"Write a cron expression for: every weekday at 9:30 AM"

Claude gives you the expression and explains what each part means:

30 9 * * 1-5
# ┬  ┬ ┬ ┬ ┬
# │  │ │ │ └─ Monday through Friday
# │  │ │ └─── Every month
# │  │ └───── Every day of month
# │  └─────── 9 AM
# └──────────── 30 minutes

This works for any schedule complexity:

# Simple schedules
"Every hour on the hour"           → 0 * * * *
"Every day at midnight"            → 0 0 * * *
"Every Sunday at 3 AM"             → 0 3 * * 0

# Complex schedules
"Every 15 minutes during business hours (9-5) on weekdays"
→ */15 9-17 * * 1-5

"First day of every quarter at midnight"
→ 0 0 1 1,4,7,10 *

"Every other Tuesday at noon"
# Claude explains this can't be expressed in standard cron
# and suggests alternatives

You can also go the other direction — paste a cron expression you found and ask Claude to explain it:

"What does this cron expression do: 0 */6 * * 1-5"
# → "Every 6 hours on weekdays (midnight, 6am, noon, 6pm)"

When adding scheduled tasks to your project, Claude writes the full implementation:

"Add a scheduled task that sends weekly report emails every Monday at 8 AM"
# Claude writes the cron expression AND the Laravel scheduler entry,
# GitHub Actions schedule, or whatever your framework uses

Cron expressions are write-only code — easy to create, impossible to read. Let Claude write them so you describe the schedule and get the syntax right every time.

via Claude Code