Thursday a consequence, some call Thursday "thirstday" or "thirsty Thursday". In the United Kingdom, all general elections since 1935 have been held on a Thursday, and this has become a tradition, although not a requirement of the law — which merely states that an election may be held on any day ""except Saturdays, Sundays, Christmas Eve, Christmas Day, Good Friday, bank holidays in any part of the United Kingdom and any day appointed for public thanksgiving and mourning."" Additionally, local elections are usually held on the first Thursday in May. The Electoral Administration Act 2006 removed Maundy Thursday as an excluded
Adoption of the Gregorian calendar 12 days, only 11 were skipped, and the day of the week was repeated on successive days, because at the same time the International Date Line was moved, from following Alaska's eastern border with Canada to following its new western border, now with Russia. Many of the countries of eastern Europe were Eastern Orthodox or Islamic and adopted the Gregorian calendar much later than western Christian countries. Roman Catholic countries such as the Polish–Lithuanian Commonwealth adopted the "new style" (N.S.) Gregorian calendar in 1582 (switched back in 1795 after Third Partition of Poland), but the switch to the Gregorian calendar