Determination of the day of the week day of the week begins by starting from an ‘anchor date’: a known pair (such as January 1, 1800 as a Wednesday), determining the number of days between the known day and the day that you are trying to determine, and using arithmetic modulo 7 to find a new numerical day of the week. One standard approach is to look up (or calculate, using a known rule) the value of the first day of the week of a given century, look up (or calculate, using a method of congruence) an adjustment for the month, calculate the number of leap years
First day of school state schools in England and Wales varies by local authority and sometimes by school, but it is nearly always during the first week of September, or occasionally in the second week. The school term in Scotland begins in mid- to late-August, more than a week earlier than in the rest of the UK. The precise date varies by local authority and sometimes by school. The first day of school in Slovenia is on September 1, or the first Monday following if September 1 falls on Saturday or Sunday First day of school The first day of school is the first