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four times each day (from Latin quater die sumendus) q.h. each hour (from Latin quaque hora) q.h.s. every bedtime (from Latin quaque hora somni) q.i.d. four times each day (from Latin quater in die) (not deprecated, but consider using "four times a day" instead. See the do-not-use list) QIDS: Quick Inventory of Depressive Symptoms: q.l.
4 times a day quater die sumendum q.i.d, qid 4 times a day quater in die q.h., qh every hour, hourly quaque hora q.o.d., qod every other day / alternate days quaque altera die q.p.m., qPM, qpm every afternoon or evening: quaque post meridiem q.s., qs a sufficient quantity quantum sufficiat: q.wk. also qw weekly (once a week) quaque week
The seven-day week is named in many languages by a word derived from "seven". The archaism sennight ("seven-night") preserves the old Germanic practice of reckoning time by nights, as in the more common fortnight ("fourteen-night"). [8] Hebdomad and hebdomadal week both derive from the Greek hebdomás (ἑβδομάς, "a seven").
A fragment of the Fasti Praenestini for the month of Aprilis, showing its nundinal letters on the left side The full remains of the Fasti Praenestini. The nundinae (/ n ə n ˈ d ɪ n aɪ /, /-n iː /), sometimes anglicized to nundines, [1] were the market days of the ancient Roman calendar, forming a kind of weekend including, for a certain period, rest from work for the ruling class ().
The ancient Etruscans developed an eight-day market week known as the nundinum around the 8th or 7th century BC. This was passed on to the Romans no later than the 6th century BC. As Rome expanded, it encountered the seven-day week and for a time attempted to include both. The popularity of the seven-day rhythm won, and the eight-day week ...
Under a traditional American schedule, pupils in a high school will study seven subjects a day for 45 minutes for each day of the week for a semester. There will be two semesters in the year so 14 subjects could be studied. Some pupils will not study all seven subjects. There was great variety as each school board was free to decide the ...
The similar concept of a man-day, man-week, man-month, or man-year [3] [4] is used on large projects. It is the amount of work performed by an average worker during one day, week, month, or year, respectively. The number of hours worked by an individual during a year varies greatly according to cultural norms and economics.
Between the first and third centuries CE, the Roman Empire gradually replaced the eight-day Roman nundinal cycle with the seven-day week. The earliest evidence for this new system is a Pompeiian graffito referring to 6 February (ante diem viii idus Februarias) of the year 60 CE as dies solis ("Sunday"). [3]