Monday

(  /ˈmʌndeɪ/ or /ˈmʌndi/) is the day of the week between Sunday and Tuesday. According to international standard ISO 8601 it is the first day of the work week. According to the Christian, Islamic and Hebrew calendars, Sunday is the first day of the week. The name of Monday is derived from Old English Mōnandæg and Middle English Monenday, which means "moon day".