<Li> 27 week years are 5 days longer than the month years (371 − 366). </Li> <Li> 44 week years are 6 days longer than the month years (371 − 365). </Li> <Li> 70 week years are 2 days shorter than the month years (364 − 366). </Li> <Li> 259 week years are 1 day shorter than the month years (364 − 365). </Li>

When does the first week of the month start