preferred_time=2013-01-28 12:00:00
  current_time=2013-01-28 12:00:00
      ref_time=2013-01-28 13:00:00

weekday=sunday    11:00-13:00
weekday=monday    11:00-13:00
weekday=tuesday   11:00-13:00
weekday=wednesday 11:00-13:00
weekday=thursday  11:00-13:00
weekday=friday    11:00-13:00
weekday=saturday  11:00-13:00
# speday=
# exclusion=
timeperiod=exclude

# weekday=
speday=2013-01-02 - 2013-02-01 / 2 00:00-24:00
exclusion=exclude
timeperiod=main
