Skip to main content

Documentation Index

Fetch the complete documentation index at: https://docs.mergent.co/llms.txt

Use this file to discover all available pages before exploring further.

Cron syntax is the most common method specify recurring events. It is defined by five fields that specify when a task should be executed. 
| | | | |
| | | | +----- Day of the Week (0 - 7) (Sunday = 0 or 7)
| | | +---------- Month (1 - 12)
| | +--------------- Day of the Month (1 - 31)
| +-------------------- Hour (0 - 23)
+------------------------- Minute (0 - 59)
  1. Minute: This is the first field. It specifies the minute of the hour that the command will be executed. It can be any integer from 0 to 59.
  2. Hour: This field specifies the hour of the day that the command will be executed. It can be any integer from 0 to 23. It’s based on a 24-hour clock.
  3. Day of the Month: This field specifies the day of the month that the command will be executed. It can be any integer from 1 to 31, depending on the month and whether it is a leap year.
  4. Month: This field specifies the month of the year. It can be any integer from 1 (January) to 12 (December).
  5. Day of the Week: This field specifies the day of the week. Both 0 and 7 represent Sunday, 1 stands for Monday, and so on until 6, which stands for Saturday.
Here are some examples:
  • 0 0 * * *: This pattern tells the system to run a task every day at midnight.
  • 0 0 1 * *: This pattern schedules a task for midnight of the first day of every month.
  • 0 0 * * 0: This pattern schedules a task for every Sunday at midnight.
  • 0 0 * * 1-5: This pattern schedules a task for every weekday at midnight.
For each field, you can also specify multiple values separated by commas, ranges, and steps.
  • Commas: If you want a command to run at multiple, but not all, instances of a time unit, you can use commas. For example, 0 0,12 * * * runs a command twice daily at midnight and noon.
  • Ranges: If you want a command to run continuously for a range of time, use hyphens. For example, 0 0-5 * * * runs a command at the top of the hour for the first 5 hours of every day.
  • Steps: If you want to run a command at regular intervals over a range of time, you can use steps, specified with a slash. For example, */10 * * * * runs a command every 10 minutes.
These patterns can also be combined. For example, 0 0-6,18-23 * * * runs a command hourly during the first six hours of the day and the last six hours of the day.