is een specifiek soort: fundamental measure, fundamental quantity.

is een bredere term voor o.a.: test period, trial period | time frame | grace, grace period | hours | downtime | uptime | work time | time off | bout | hospitalization | travel time | times | time | elapsed time | continuance, duration | calendar week, week | midweek | field day | life, life-time, lifespan, lifetime | life | life | millenary, millennium | bimillenary, bimillennium | occupation | past | shelf life | puerperium | lactation | time of life | calendar day, civil day | festival | day, daylight, daytime | forenoon, morn, morning, morning time | dark, night, nighttime | night | night | night | eve | evening | hebdomad, week | fortnight, two weeks | weekend | Indian summer, Saint Martin's summer | year | school, school day, schooltime | twelvemonth, year, yr | year | semester | bimester | Olympiad | lustrum | decade, decennary, decennium | century | quadrennium | quinquennium | half-century | quarter-century | quarter | phase of the moon | day | calendar month, month | mid-January | mid-February | mid-March | mid-April | mid-May | mid-June | mid-July | mid-August | mid-September | mid-October | mid-November | mid-December | time limit | term | trimester | hour | silly season | Golden Age | silver age | bronze age | iron age | great year, Platonic year | regulation time | extra time, overtime | season, time of year | canicular days, canicule, dog days | midwinter | season | season | age, long time, years | long haul, long run | drought, drouth | epoch, era | generation | prehistoric culture, prehistory | reign | run | early days, youth | dawn | evening | time | nap, sleep | lease, term of a contract | half-life, half life | lunar time period, tide | phase, stage | multistage | watch | peacetime | wartime | duty tour, enlistment, hitch, term of enlistment, tour, tour of duty | honeymoon | indiction | prohibition, prohibition era | incubation period | rainy day | noviciate, novitiate | bloom, blossom, efflorescence, flower, flush, heyday, peak, prime | running time | clotting time | air alert | question time | real time | real time | study hall | usance | window ... meer laten zien.

voorbeelden ervan zijn: Bronze Age | Iron Age | Stone Age | Eolithic, Eolithic Age | Palaeolithic, Paleolithic, Paleolithic Age | Lower Paleolithic | Middle Paleolithic | Upper Paleolithic | Epipaleolithic, Mesolithic, Mesolithic Age | Neolithic, Neolithic Age, New Stone Age | Great Schism ... meer laten zien.