1
Beltane - Samhain *- Wicca/Pagan Northern and Southern hemispheres
Lailat al bara'ah * - Islam
2
*Last day of Ridvan - Baha'i
3
Saints Philip & James - Christian
National Day of Prayer USA - Interfaith
Lag B'Omer * Jewish
10
Ascension of Jesus - Christian
15-June 14
Ramadan * **- Islam
17
Ascension of Jesus - Orthodox Christian
20-21
Shavuot * - Jewish
20
Pentecost - Christian
23
Declaration of the Bab * - Baha'i
27
Pentecost - Orthodox Christian
Trinity Sunday - Christian
29
Ascension of Baha'u'llah * - Baha'i
31
Corpus Christi- Catholic Christian

http://www.interfaith-calendar.org/2018.htm
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