There are so many holidays that Japan has and celebrates. Some of the holidays include Setsubun which is the beginning of spring, Shogatsu which is New Year's, Valentine's Day, and many more.

They do have Ceremonies and holidays.

One can find a chart of Japan holidays from websites like Expedia and Virgin Holidays. These are the leading providers of list of holiday visits to many countries.

Obon or the Bon Festival honoring parents and other ancestors holds a special place in the 27 holidays of Japan.

Most anime's celebrate Holidays. Most do Christmas, Valentines day and White day. Sometimes they do more traditional holidays native to Japan but it isn't rare for an anime to do a holiday special episode.