Systemd » Check calendar event formats
$ systemd-analyze calendar "*:0/15"
Original form: *:0/15
Normalized form: *-*-* *:00/15:00
Next elapse: Wed 2024-01-24 22:15:00 GMT
(in UTC): Wed 2024-01-24 22:15:00 UTC
From now: 9min left
$ systemd-analyze calendar "*:0/15"
Original form: *:0/15
Normalized form: *-*-* *:00/15:00
Next elapse: Wed 2024-01-24 22:15:00 GMT
(in UTC): Wed 2024-01-24 22:15:00 UTC
From now: 9min left