On gloss:

mumdei in sense "a full day in duration"
x1 is a Friday of week x2 in calendar x3.
mumdei
x1 is a Friday of week x2 in calendar x3.
mumdei in sense "a full day in duration" on place 1
x1 is a Friday of week x2 in calendar x3.
mumdei
x1 is a Friday of week x2 in calendar x3.
jednmu in sense "date"
x1 (event/state) is on Friday or the fifth day of a week x2 in system x3.

In definition:

bladei
x1 is Friday of week x2 on calendar x3.
jimdei
x1 is Friday of week x2 on calendar x3.
mumvanci
x1 is a Friday evening of week x2 in calendar x3.