Week

A week is a period of time comprising seven days. In the Bible, God took six days to create the earth and all the creatures thereon, and then rested on the seventh day. This is the basis for our modern week. In Judaism the seventh day or sabbath is equivalent to the Christian Saturday. In Christendom the seventh day, and day of rest, is held to occur on Sunday. For this reason there is often confusion about whether Monday or Sunday should be referred to as the first day of the week. In Islam the day of rest and religious observance is equivalent to the Christian Friday.

In western society a working week is usually considered to run from Monday through Friday with Saturday and Sunday constituting the weekend. However, many individuals are obliged to work at the weekend and take other days in lieu.