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.
That would depend on the month as there are months with 30, 31 and 28 days. Multiply the number of days of the month you want by 24 hrs per day. 730.5 hours average per month for a 4 year period which includes 1 leap year.