scheme might appear somewhat weird at a first glance, it is very powerful.
In order to make this clear, here are some examples:
-- '(0 . day): this is the default value of `nndiary-reminders'. It means
+- (0 . day): this is the default value of `nndiary-reminders'. It means
pop up the appointments of the day each morning at 00:00.
-- '(1 . day): this means pop up the appointments the day before, at 00:00.
+- (1 . day): this means pop up the appointments the day before, at 00:00.
-- '(6 . hour): for an appointment at 18:30, this would pop up the
+- (6 . hour): for an appointment at 18:30, this would pop up the
appointment message at 12:00.
-- '(360 . minute): for an appointment at 18:30 and 15 seconds, this would
+- (360 . minute): for an appointment at 18:30 and 15 seconds, this would
pop up the appointment message at 12:30."
:group 'nndiary
:type '(repeat (cons :format "%v\n"