External Commands Reference - DELAY_SVC_NOTIFICATION
DELAY_SVC_NOTIFICATION;host_name;service_description;notification_time
Delays the next notification for a parciular service until ‘notification_time’. The ‘notification_time’ argument is specified in time_t format (seconds since the UNIX epoch). Note that this will only have an affect if the service stays in the same problem state that it is currently in. If the service changes to another state, a new notification may go out before the time you specify in the ‘notification_time’ argument.
#!/bin/sh
# This is a sample shell script showing how you can submit the DELAY_SVC_NOTIFICATION command
# to Naemon. Adjust variables to fit your environment as necessary.
printf "[%lu] DELAY_SVC_NOTIFICATION;host1;service1;1478638441\n" `date +%s` > /var/lib/naemon/naemon.cmd