Friday is the day of the week between Thursday and Saturday. In countries adopting the "Monday-first" convention, it is the fifth day of the week. In countries that adopt the "Sunday-first" convention, it is the sixth day of the week. In most Western countries, Friday is the fifth and final day of the working week. In some other countries, Friday is the first day of the weekend, with Saturday the second.

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.