Sunday is the day of the week between Saturday and Monday. Sunday is a day of rest in most Western countries and a part of the weekend.

Days of the Week

The names of the days of the seven-day week in many languages are derived from the names of the classical planets in Hellenistic astrology, which were in turn named after contemporary deities, a system introduced in the Roman Empire during the Late Antiquity. In some other languages, the days are named for corresponding deities of the regional culture, beginning with Sunday or Monday.