Four-day week on transportation, heating, and substitute teachers. More modest attempts to enact a 32-hour workweek (a four-day week and an eight-hour day combined) have remained elusive in the following 80 years despite pockets of residual support. In Gambia, a four-day workweek was introduced for public officials by president Yahya Jammeh, effective as of 1 February 2013. Working hours became Mondays through Thursday 8 a.m. to 6 p.m., with Friday foreseen as a day of rest to allow residents more time for prayer and agriculture. This regulation was abolished in early 2017 by his successor, president Adama Barrow, who decreed a half-day
Determination of the day of the week since the start of the century, and then add these together along with the number of years since the start of the century, and the day number of the month. Eventually, one ends up with a day-count to which one applies modulo 7 to determine the day of the week of the date. Some methods do all the additions first and then cast out sevens, whereas others cast them out at each step, as in Lewis Carroll's method. Either way is quite viable: the former is easier for calculators and computer programs; the latter for mental calculation (it is quite