Nouns denoting time and temporal relations

Christian era
the time period beginning with the supposed year of Christ's birth
red-letter day
a memorably happy or noteworthy day (from the custom of marking holy days in red on church calendars)
sabbatical year
a sabbatical leave lasting one year
one thousand periods per second
luminous flux
the rate of flow of light energy
the rate at which words are produced (as in speaking or typing)
Age of Reptiles
from 230 million to 63 million years ago
(Latin) year
the middle part of March
the decade from 1950 to 1959
long run
a period of time sufficient for factors to work themselves out
(corporate finance) the amount, expressed as a percentage, that is earned on a company's total capital calculated by dividing the total capital into earnings before interest, taxes, or dividends are paid
the middle part of September
one of the four-year intervals between Olympic Games; used to reckon time in ancient Greece for twelve centuries beginning in 776 BC
Christmas Day
a Christian holiday celebrating the birth of Christ; a quarter day in England, Wales, and Ireland
past times (especially in the phrase `in days of old')
name day
the feast day of a saint whose name one bears
running time
the length of time that a movie or tv show runs
the end or completion of something
the date on which an event occurred in some previous year (or the celebration of it)
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