Creating cron jobs

Cron job variables

In the URL, header values and request body of your cron jobs, you can use special variables. Those special variables will be replaced with a corresponding value each time cron-job.org executes your job.

Supported variables

The following variables are supported by cron-job.org:

Variable

Description

Example

%cjo:unixtime%

Current unix timestamp

1722623610

%cjo:uuid4%

A UUID v4 unique identifier (not for cryptographic usage)

bd901c8b-11ea-431c-9311-90348e9b3a7f

Using a variable multiple times will cause the corresponding value to be re-generated for each occurence of the variable. For example, using the %cjo:uuid4% variable twice will produce two different UUIDs.