Combines this date with the time of midnight to create a {@code LocalDateTime}
at the start of this date.
!(p)
This returns a {@code LocalDateTime} formed from this date at the time of
midnight, 00:00, at the start of this date.
@return the local date-time of midnight at the start of this date, not null
Combines this date with the time of midnight to create a {@code LocalDateTime} at the start of this date. !(p) This returns a {@code LocalDateTime} formed from this date at the time of midnight, 00:00, at the start of this date.
@return the local date-time of midnight at the start of this date, not null