time of day(n = noun.time) hour - clock time; "the hour is getting late"
is a kind of clock time, time
has particulars: high noon, midday, noon, noonday, noontide, twelve noon, mealtime, late-night hour, midnight, small hours, bedtime, closing time, aurora, break of day, break of the day, cockcrow, dawn, dawning, daybreak, dayspring, first light, morning, sunrise, sunup, early-morning hour, sundown, sunset, crepuscle, crepuscule, dusk, evenfall, fall, gloam, gloaming, nightfall, twilight, none, happy hour, rush hour, zero hour, canonical hour

N  instantaneity, instantaneousness, immediacy, suddenness, abruptness, moment, instant, second, minute, twinkling, trice, flash, breath, crack, jiffy, coup, burst, flash of lightning, stroke of time, epoch, time, time of day, time of night, hour, minute, very minute, very time, very hour, present time, right time, true time, exact correct time, instantaneous, momentary, sudden, immediate, instant, abrupt, discontinuous, precipitous, precipitant, precipitate, subitaneous, hasty, quick as thought, quick as lightning, quick as a flash, rapid as electricity, speedy, quick, fast, fleet, swift, lively, blitz, rapid (velocity), instantaneously, in no time, in less than no time, presto, subito, instanter, suddenly, at a stroke, like a shot, in a moment, in the blink of an eye, in the twinkling of an eye, in a trice, in one's tracks, right away, toute a l'heure, at one jump, in the same breath, per saltum, uno saltu, at once, all at once, plump, slap, at one fell swoop, at the same instant, immediately, extempore, on the moment, on the spot, on the spur of the moment, no sooner said than done, just then, slap-dash, touch and go, no sooner said than done.

access time, admission day, against time, ahead of its time, ahead of time, alaska standard time, all day long, all fools' day, all saints' day, all souls' day, all the time, american indian day, annunciation day, april fools' day, arbor day, armed forces day, armistice day, arrival time, ascension day, at a time, at one time, at the same time, atlantic standard time, atlantic time, bastille day, behind time, benting time, bering standard time, bering time, big time, big time operator, biological time, bissextile day, boxing day, break of day, break of the day, breakfast time, breathing time, buy time, by the day, calendar day, call it a day, candlemas day, central standard time, central time, checkout time, childermas day, christian holy day, christmas day, citizenship day, civil day, civil time, clarence day, clarence shepard day jr., class day, clock time, closing time, clotting time, columbus day, command processing overhead time, commencement day, common time, commonwealth day, compensatory time, coordinated universal time, cosmic time, day, day after day, day bed, day blindness, day boarder, day book, day by day, day camp, day care, day care center, day game, day in and day out, day in day out, day jessamine, day laborer, day labourer, day lily, day nursery, day of atonement, day of judgement, day of judgment, day of reckoning, day of remembrance, day of rest, day of the month, day of the week, day off, day return, day school, day shift, day watch, daylight-saving time, daylight-savings time, decoration day, degree day, departure time, discovery day, do time, dominion day, double time, duple time, each day, earth-received time, easter day, eastern standard time, eastern time, elapsed time, election day, ember day, empire day, ephemeris time, every day, extended time scale, extra time, face time, fast day, fast time scale, father time, father's day, feast day, fete day, field day, flag day, flex time, for the first time, for the time being, forever and a day, four-four time, free time, from time to time, full time, future day, gain the day, geologic time, geological time, good day, good time, greenwich mean time, greenwich time, groundhog day, guy fawkes day, hadean time, half time, hard time, harvest time, have a good time, hawaii standard time, hawaii time, haying time, high holy day, high time, holy day, holy day of obligation, holy innocents' day, in due time, in good time, in no time, in real time, in the nick of time, in time, inauguration day, independence day, innocents' day, jewish holy day, judgement day, judgment day, just in time, kill time, labor day, lady day, lammas day, last day, lead time, leap day, leisure time, light time, local time, long time, lord's day, lunar day, lunar time period, major fast day, mark time, market day, martin luther king day, may day, mean solar day, mean solar time, mean time, memorial day, michaelmas day, midsummer day, midsummer's day, minor fast day, morning time, mother's day, mountain standard time, mountain time, musical time, musical time signature, naked as the day one was born, naked as the day you were born, name day, natal day, new year's day, night and day, of all time, on time, one at a time, one time, one-way light time, order of the day, pacific standard time, pacific time, pan american day, pancake day, part time, patriot's day, patriots' day, period of time, pioneers' day, point in time, polling day, poppy day, present day, presidents' day, prime time, processing time, quadruple time, quarter day, question time, quick time, rag day, rainy day, ravages of time, reaction time, real time, red-letter day, regulation time, relaxation time, remembrance day, residence time, response time, rest day, robert e lee day, rogation day, round-trip light time, running time, saint patrick's day, saint valentine's day, saint's day, school day, seek time, seize the day, serve time, show time, sidereal day, sidereal time, since a long time ago, six day war, slow time, slow time scale, small time, solar day, space time, spacecraft clock time, spacecraft event time, spare time, speech day, st john's day, st martin's day, st patrick's day, st valentine's day, standard time, starting time, tag day, take time, take time by the forelock, take time off, term day, terrestrial dynamical time, terrestrial time, texas independence day, thanksgiving day, three kings' day, time, time and a half, time and again, time and motion study, time and time again, time being, time bill, time bomb, time capsule, time clock, time constant, time deposit, time deposit account, time draft, time exposure, time frame, time immemorial, time interval, time lag, time limit, time loan, time machine, time note, time of arrival, time of departure, time of life, time of origin, time of year, time off, time out, time out of mind, time period, time plan, time policy, time saving, time scale, time series, time sharing, time sheet, time signal, time signature, time slot, time study, time to come, time unit, time value, time zone, track-to-track seek time, transfiguration day, transmission time, travel time, triple time, turnaround time, twelfth day, two time, unit of time, united nations day, universal time, unlucky day, v-e day, v-j day, valentine day, valentine's day, veterans day, veterans' day, victoria day, victory day, washing day, waste of time, waste one's time, waste time, wedding day, when the time comes, while away the time, work day, work time, working day, yukon time