May's kalendar at St George's, giving Mass and meeting times, and even lay ministries' rotae. 

The Anglican Ordo Kalendar. This is the calendar of the Book of Common Prayer as supplemented by the Anglican Missal and conformed to the wider Church.  This kalendar is the one followed at St George's. 

The kalendar of the Western Church, as is kept by our brethren in the Roman Catholic Church and many traditional Anglicans.

(This kalendar is maintained on a different site.  Clicking on the link will open a new page.)

KALENDAR: n. The older spelling indicates the calendar of the Church year, listing days by the observances kept.  In the middle ages, this was the primary calendar, and the secular calendar developed from the pagan month and day names.  There is a general, universal, or Catholic kalendar, and various provincial, diocesan, and local kalendars.  In modern use, days are classified as Solemnities, Feasts, Memorials, and optional Memorials, in decreasing order of importance.