Friday - AbsoluteAstronomy.com

Friday is the day between Thursday

Thursday

Thursday is the fourth day of the week according to the ISO 8601 international standard adopted in most western countries. In countries that use the Sunday-first convention and in the Judeo-Christian calendar it is the fifth day of the week. It falls between Wednesday and Friday...

and Saturday

Saturday

Saturday is the day of the week following Friday and preceding Sunday.Saturday is the last day of the week on many calendars and in conventions that consider the week as beginning on Sunday, or the sixth day of the week according to international standard ISO 8601 which was first published in...

. In countries adopting Monday-first conventions as recommended by the international standard ISO 8601

ISO 8601

ISO 8601 Data elements and interchange formats – Information interchange – Representation of dates and times is an international standard covering the exchange of date and time-related data. It was issued by the International Organization for Standardization and was first published in 1988...

, it is the fifth day of the week. It is the sixth day in countries that adopt a Sunday-first convention as in Abrahamic tradition. (See "Week-day names

Week-day names

The names of the days of the week from the Roman period have been both named after the seven planets of classical astronomy and numbered, beginning with Monday. In Slavic languages, a numbering system was adopted, but beginning with Monday. There was an even older tradition of names in Ancient...

" for more on the different conventions.)

In many countries, Friday is the last day of a five-day working week, and is viewed as a cause for celebration or relief (leading to the phrase "TGIF

TGIF

TGIF is an initialism for the phrase "Thank God It's Friday", celebrating the last day of the work/school week before the weekend. Its origin dates to the 1960s. It was first popularized by the restaurant T.G.I. Friday's which was founded in 1965. However, it became mainstream by the late 1970s,...

", for "Thank God It's Friday").