In the West, traditionally, the Saturday and Sunday rule applies. Things are a little different here. Friday is the core holiday. Government and schools have Wednesday off, in addition. Some private institutions have Saturdays off, while some institutions align themselves to the West. It all depends. There are some who work a six day week and many, usually labourers, who work for all seven days. Official business hours operate around a split shift system from 8 until 1, and then from 4 until 7, Saturday to Thursday, although there are many institutions who are moving toward a straight shift system from 730 to 4 or similar. Banks are usually open from 8 until 3, Saturday until Wednesday and close at midday on a Thursday. Over the coming years, Sunday to Thursday will become the norm.