Dates for the next 5 years
2018
Ostara -- March 29 - 1 April
Samhain -- November 1 - 4

2019
Ostara -- March 28 - 31
Samhain -- October 31 - 3 November

2020
Ostara -- March 26 - 29
Samhain -- November 5 - 8

2021
Ostara -- March 25 - 28
Samhain -- November 4 - 7

2022
Ostara -- March 24 - 27
Samhain -- November 3 - 6