Gregorian calendar
Related Words
yearmonthdayweekleap yearJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecemberdatetimechronologyepocheracenturymillenniumdecadequartersemestersolsticeequinoxastronomyorbitrotationrevolutionsunearthmoontropical yearJulian calendarpapacyCatholicismliturgyEasterChristmasanniversaryscheduleagendaplanneralmanacchronometertimestampdurationintervalperiodcycleintercalationprecisionstandardizationreformsynchronizationtimezonemeridianlongitudelatitudehorizonzenithnadirastrolabesundialclockwatch