Calendar Question

Earlier I posted a calendar question. I asked if I was right? Apparently not. Thanks Mr C for commenting and clearing it up.

It's actually not correct (sorry Jacob). It happens every time 1 July falls on a Friday (obviously). This happened in 1949, 1955, 1960, 1966, 1977 and many other dates -- on average, about once every 7 years. The last time was in 2005.