The operation of this module is controlled by the hobbit-alerts.cfg(5) file. This file holds the definition of rules and recipients, that determine who gets alerts, how often, for what servers etc.
The "duration" parameter is the duration of the alert in seconds.
The "color" parameter is the color of the alert.
The "time" parameter is the time-of-day for the alert, expressed as an absolute time in the epoch format (seconds since Jan 1 1970). This is easily obtained with the GNU date utility using the "+%s" output format.