chronometerMarine sandglassRadio clockWatchstopwatchWater clockSundialDialing scalesEquation of timeHistory of sundialsSundial markup schemaCalendarGregorianHebrewHinduHoloceneIslamic (lunar Hijri)JulianSolar HijriAstronomicalDominical letterEpactEquinoxIntercalationJulian dateLeap yearLunarLunisolarSolarSolsticeTropical yearWeekday determinationWeekday namesArchaeology and geologyChronological datingGeologic time scaleInternational Commission on StratigraphyAstronomical chronologyGalactic yearNuclear timescalePrecessionSidereal timeOther units of timeFlickShakeJiffySecondMinuteMomentHourDayWeekFortnightMonthYearOlympiadLustrumDecadeCenturySaeculumMillenniumRelated topicsChronologyDurationmusicMental chronometryDecimal timeMetric timeSystem timeTime metrologyTime value of moneyTimekeepervteකාලානුක්‍රමයKey topicsArchaeologyAstronomyGeologyHistoryBig HistoryPaleontologyTimePeriodsErasEpochsCalendar erasHuma