If you is coming to Japan, please check this table.
Many shops open on most of the holidays, but it is rather hard to book hotels, airplanes and trains.
Note that Sundays are also holidays for almost all white-collar people and so are Saturdays for majority of them. Also, check holidays on the law below. You know Many, many, many people go to temples and shrines. Most of stores and restaurants close around the day. Only spring Setsubun survived today.