Below are the dates for, among others, Sweetest Day 2012 and Sweetest Day 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
Sweetest Day 2012	October 20, 2012	Saturday	42	157
Sweetest Day 2013	October 19, 2013	Saturday	42	521
Sweetest Day 2014	October 18, 2014	Saturday	42	885
Sweetest Day 2015	October 17, 2015	Saturday	42	1249
Sweetest Day 2016	October 15, 2016	Saturday	41	1613
Sweetest Day 2017	October 21, 2017	Saturday	42	1984
Sweetest Day 2018	October 20, 2018	Saturday	42	2348
Sweetest Day 2019	October 19, 2019	Saturday	42	2712
Sweetest Day 2020	October 17, 2020	Saturday	42	3076
Sweetest Day 2021	October 16, 2021	Saturday	41	3440
Sweetest Day 2022	October 15, 2022	Saturday	41	3804

See besides 'Sweetest Day' even more holidays, click on one of the links below.
2012 Holidays   •   2013 Holidays   •   2014 Holidays   •   2015 Holidays

See also the 2012 Calendar.