Question 1

What is a cron expression?

Accepted Answer

A cron expression is a string of 5 fields (minute, hour, day-of-month, month, day-of-week) used to schedule recurring tasks in Unix-like operating systems and many cloud services.

Question 2

What does */5 * * * * mean?

Accepted Answer

It means 'every 5 minutes'. The */5 in the minute field means 'every 5th minute', and the asterisks in other fields mean 'every hour, every day, every month, every day of week'.

Question 3

Does this support 6-field cron expressions?

Accepted Answer

This tool supports standard 5-field cron expressions (minute, hour, day-of-month, month, day-of-week) as used in most systems. Some platforms add a seconds field.