In definition:
- bladei
- x1 is Friday of week x2 on calendar x3.
- jednmu
- x1 (event/state) is on Friday or the fifth day of a week x2 in system x3.
- jimdei
- x1 is Friday of week x2 on calendar x3.
- mumdei
- x1 is a Friday of week x2 in calendar x3.
- mumvanci
- x1 is a Friday evening of week x2 in calendar x3.