#meter_reading.datum__meterreading__reading  the data presented to a user by a meter or similar instrument; "he could not believe the meter reading"
  supertype:  datum__data_point  an item of factual information derived from measurement or research
  subtype:  clock_time__clocktime__time  the time as given by a clock; "do you know what time it is?"; "the time is 10 o'clock"
     subtype:  spacecraft_clock_time__SCLK  the clock time given by a clock carried on board a spacecraft
     subtype:  prime_time__primetime  the hours between 7 and 11 p.m. when the largest tv audience is available
     subtype:  time_of_day__hour  clock time; "the hour is getting late"
        subtype:  twelve_noon__noon__high_noon__midday__noonday__noontide  the middle of the day
        subtype:  mealtime  the time for eating a meal
           subtype:  breakfast_time__breakfasttime  the time for eating breakfast
           subtype:  lunchtime__lunch_period__lunchperiod  the time for eating lunch; "he observed a regular lunchtime"
           subtype:  dinnertime__suppertime  the time for the evening meal
        subtype:  late-night_hour  the latter part of night
        subtype:  midnight  12 o'clock at night; the middle of the night; "young children should not be allowed to stay up until midnight"
        subtype:  small_hours  the hours just after midnight
        subtype:  bedtime  the time you go to bed
           subtype:  lights-out  a prescribed bedtime
        subtype:  closing_time__closingtime  the regular time of day when an establishment closes to the public
        subtype:  dawn__dawning__morning__first_light__firstlight__daybreak__break_of_day__break_of_the_day__dayspring__sunrise__cockcrow  the first light of day; "we got up before dawn"; "they talked until morning"
        subtype:  early-morning_hour__earlymorninghour  an hour early in the morning
        subtype:  sundown__sunset  the time in the evening at which the sun begins to fall below the horizon
        subtype:  gloaming__twilight__dusk__nightfall__evenfall__fall  the time of day immediately following sunset; "he loved the twilight"; "they finished before the fall of night"
           subtype:  night.gloaming  a shortening of nightfall; "they worked from morning to night"
        subtype:  happy_hour__happyhour  the time of day when a bar sells alcoholic drinks at a reduced price
        subtype:  rush_hour  the times at the beginning and end of the working day when many people are traveling to or from work
        subtype:  zero_hour  the time set for the start of an action or operation
        subtype:  canonical_hour__canonicalhour  (Roman Catholic Church) one of seven specified times for prayer
           subtype:  matins__morning_prayer__morningprayer  the first canonical hour; at daybreak
           subtype:  prime  the second canonical hour; about 6 a.m.
           subtype:  terce__tierce  the third canonical hour; about 9 a.m.
           subtype:  sext  the fourth of the seven canonical hours; about noon
           subtype:  nones__none  the fifth of the seven canonical hours; about 3 p.m.
           subtype:  vespers__evensong  the sixth of the seven canonical hours of the divine office; early evening; now often made a public service on Sundays
           subtype:  compline__complin  last of the seven canonical hours
  subtype:  mph__milesperhour  a speedometer reading for the momentary rate of travel

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