Weekdays for September 9

2000: Saturday
2001: Sunday
2002: Monday
2003: Tuesday
2004: Thursday

2005: Friday
2006: Saturday
2007: Sunday
2008: Tuesday
2009: Wednesday

2010: Thursday
2011: Friday
2012: Sunday
2013: Monday
2014: Tuesday

2015: Wednesday
2016: Friday
2017: Saturday
2018: Sunday
2019: Monday