First developed in the early 1960s by behavioural psychologist John S. Adams, equity theory is concerned with defining and measuring the relational satisfaction of employees.
For 31 days in a month: (31 days/month) / (7 days/week) = 4.4286 weeks/month. For 30 days in a month: (30 days/month) / (7 days/week) = 4.2857 weeks/month. For 28 days in a month: (28 days/month) / (7 days/week) = 4 weeks/month. For 29 days in a month: (29 days/month) / (7 days/week) = 4.1429 weeks/month.
For months with 31 days (January, March, May, July, August, December) 2,678,400 For months with 30 days (September, April, June, and November) 2,592,000 For month of 28 days (regular February) 2,419,200 For month of 29 days (leap year February) 2,505,600