People are confused as to how to sit shiva and how to properly pay a shiva call. Because people do not know, and because talking about death makes people nervous and awkward, the shiva house often turns into a festive gathering filled with nervous chatter, instead of the proper house of mourning.
The average number of days in a month is around 30.4. With 24 hours in a day, this is an average of about 730 hours per month.
The average is 21 (20.8) days per month. There are 10 Federal Holidays per year. Some states also have 1 or 2 per year so for them the average drops an extra 10th pt.. Some times an extra day is thrown in on some holidays , as some businesses or the employees on their own take another day off.