require 'easter'
# return the date of Easter for the current year (2014)
Easter.easter #=> #<DateTime: 2014-04-20T00:00:00+00:00 (...)>
# return the date of Easter for 2015
Easter.easter 2015 #=> #<DateTime: 2015-04-05T00:00:00+00:00 (...)>
In addition we can return the dates for Ash Wednesday, Palm Sunday, Good Friday, Ascension Day, and Pentecost.
Easter.ash_wednesday #=> #<DateTime: 2014-03-05T00:00:00+00:00 (...)>
gem easter dates holidays