Answer，NewYearsDay。Explanation，NewYearsDayisanannualpublicholidaythatfallsonthefirstdayoftheyearaccordingtotheGregoriancalendar。Itisatimeforfamiliesandfriendstocometogetherandcelebratethestartofanewyear。Expansion，NewYear’sDayiscelebratedinmanydifferentwaysthroughouttheworld，fromthetraditionalfireworksandparadestomoremodernactivitieslikeattendingpartiesorwatchingtheballdropinTimesSquare。Itisalsoatimetomakeresolutionsandreflectonthepreviousyear。Manypeoplereceivegifts，exchangecardsandenjoytraditionaldishes。