time unit, unit of time - a unit for measuring time periods

day, mean solar day, solar day, twenty-four hours - time for Earth to make a complete rotation on its axis; "two days later they left"; "they put on two performances every day"; "there are 30,000 passengers per day"

sidereal hour - 1/24 of a sidereal day

30 minutes, half-hour - a half of an hour

15 minutes, quarter-hour - a quarter of an hour

man hour, person hour - a time unit used in industry for measuring work

min, minute - a unit of time equal to 60 seconds or 1/60th of an hour; "he ran a 4 minute mile"

quarter - a unit of time equal to 15 minutes or a quarter of an hour; "it's a quarter til 4"; "a quarter after 4 o'clock"

clock time, time - the time as given by a clock; "do you know what time it is?"; "the time is 10 o'clock"

high noon, midday, noon, noonday, noontide, twelve noon - the middle of the day

mealtime - the hour at which a meal is habitually or customarily eaten

late-night hour - the latter part of night

midnight - 12 o'clock at night; the middle of the night; "young children should not be allowed to stay up until midnight"

small hours - the hours just after midnight

bedtime - the time you go to bed

closing time - the regular time of day when an establishment closes to the public

aurora, break of day, break of the day, cockcrow, dawn, dawning, daybreak, dayspring, first light, sunrise, sunup, morning - the first light of day; "we got up before dawn"; "they talked until morning"

early-morning hour - an hour early in the morning

sundown, sunset - the time in the evening at which the sun begins to fall below the horizon

crepuscle, crepuscule, dusk, evenfall, gloaming, nightfall, twilight, fall - the time of day immediately following sunset; "he loved the twilight"; "they finished before the fall of night"

none - a canonical hour that is the ninth hour of the day counting from sunrise

happy hour - the time of day when a bar sells alcoholic drinks at a reduced price

rush hour - the times at the beginning and end of the working day when many people are traveling to or from work

zero hour - the time set for the start of an action or operation

canonical hour - (Roman Catholic Church) one of seven specified times for prayer

period, period of time, time period - an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"

distance - the property created by the space between two objects or points