Below are the dates for, among others, Pentecost 2012 and Pentecost 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
Pentecost 2012	May 27, 2012	Sunday	22	11
Pentecost 2013	May 19, 2013	Sunday	21	368
Pentecost 2014	June 8, 2014	Sunday	24	753
Pentecost 2015	May 24, 2015	Sunday	22	1103
Pentecost 2016	May 15, 2016	Sunday	20	1460
Pentecost 2017	June 4, 2017	Sunday	23	1845
Pentecost 2018	May 20, 2018	Sunday	21	2195
Pentecost 2019	June 9, 2019	Sunday	24	2580
Pentecost 2020	May 31, 2020	Sunday	23	2937
Pentecost 2021	May 23, 2021	Sunday	21	3294
Pentecost 2022	June 5, 2022	Sunday	23	3672

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

See also the 2012 Calendar.