Below are the dates for, among others, Patriot Day or September 11th 2012 and Patriot Day or September 11th 2013.
You can also see on which day the holiday falls and how many days it is until this holiday.

Holiday	Date		Week number	Number of days to go
Patriot Day or September 11th 2012	September 11, 2012	Tuesday	37	220
Patriot Day or September 11th 2013	September 11, 2013	Wednesday	37	585
Patriot Day or September 11th 2014	September 11, 2014	Thursday	37	950
Patriot Day or September 11th 2015	September 11, 2015	Friday	37	1315
Patriot Day or September 11th 2016	September 11, 2016	Sunday	37	1681
Patriot Day or September 11th 2017	September 11, 2017	Monday	37	2046
Patriot Day or September 11th 2018	September 11, 2018	Tuesday	37	2411
Patriot Day or September 11th 2019	September 11, 2019	Wednesday	37	2776
Patriot Day or September 11th 2020	September 11, 2020	Friday	37	3142
Patriot Day or September 11th 2021	September 11, 2021	Saturday	36	3507
Patriot Day or September 11th 2022	September 11, 2022	Sunday	37	3872

See besides 'Patriot Day or September 11th' even more holidays, click on one of the links below.
2012 Holidays   •   2013 Holidays   •   2014 Holidays   •   2015 Holidays

See also the 2012 Calendar.