week is a period of seven days, a unit of time artificially devised with no astronomical basis.

1 week = 7 days = 168 hours = 10,080 minutes = 604,800 seconds.

In many languages, the days of the week are named after classical planets or gods of a pantheon.

In English, the names are Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, and Sunday, then returning to Monday.

Monday is derived from Old English Mōnandæg and Middle English Monenday, originally a translation of Latin dies lunae “day of the Moon”.

Tuesday is derived from Old English Tiwesdæg and Middle English Tewesday, meaning “Tīw’s Day”, the day of Tiw or Týr, the god of single combat, and law and justice in Norse mythology.

Wednesday is derived from Old English Wōdnesdæg and Middle English Wednesdei, “day of Woden”, reflecting the religion practised by the Anglo-Saxons, the English equivalent to the Norse god Odin.

Thursday is derived from Old English þunresdæg and Middle English Thuresday meaning “Thor’s Day”. It was named after the Norse god of Thunder, Thor.

Friday comes from Old English frīġedæġ, meaning the “day of Frig”, a result of an old convention associating the Germanic goddess Frigg with the Roman goddess Venus, with whom the day is associated in many different cultures.

Saturday comes from Old English Sæterndæg – translation of Latin Saturni dies Sāturni diēs (“Saturn’s Day”) no later than the 2nd century for the planet Saturn, which controlled the first hour of that day, according to Vettius Valens.

Sunday comes from Old English Sunnandæg, which is derived from a Germanic interpretation of the Latin dies solis, “sun’s day.”