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Work Day Availability: Comparison of Gregorian and Luni-Solar Calendars


Gregorian calendar

5 day work week = 40 hours per week
5 days x 52 weeks = 260 work days per year

                     365 days per calendar year:

                     -104 weekend days (Saturday and Sunday)
                     -10 work days used in 2 week vacation
                     -6 National Holidays (average)
                     -5 Sick days (average allowed)

                    131 total days off per calendar year
                    240 total work days per year

                    365 days – 131 days off = 240 total work days per year


Luni-Solar Calendar

6 day work week = 48 hours per week
6 days x 52 weeks = 312 work days per year

                     365 days per Gregorian year

                     -52 Sabbath days
                     -12 new moon days
                     -12 vacation days (1 week in Spring; 1 in Fall)
                     - 2 additional holy days (Pentecost & Day of Atonement)
                     - 5 sick days (average allowed)

                    83 days off per calendar year
                    282 total work days per year

                    365 days – 83 days off = 282 total work days per year