[systemd-devel] Add timer exception

[Kenneth Porter]

--On Monday, November 05, 2018 2:37 PM +0100 Lennart Poettering 
<lennart at poettering.net> wrote:

> I would be great to add a concept for that, but so far nobody
> suggested a nice syntax and a patch for it yet.

For prior art, take a look at the RRULE syntax in calendar files.

<https://icalendar.org/iCalendar-RFC-5545/3-8-5-3-recurrence-rule.html>