Children's Day, a festival held in Japan on 5 May to celebrate children; part of the Golden Week series of holidays in May

a surname

(archaic, possibly obsolete) two days, a two-day period

be new, it has not been long since, still in the early days of, not many days have passed since

Sabbath (Biblical seventh day)

Sabbath (Biblical seventh day)

Sabbath (Biblical seventh day)

anniversary (day an exact number of years since an event)

Mother's Day

Same as above.