Try again... you probably entered 1.0 by mistake.

The date you are seeing corresponds to 1.0. In the cell you must be getting
0:00

"Dave08" wrote:

I am trying to format a cell so it displays Hours and minutes. I am entering
1:00 and desplaying 1/01/1900 12:00:00 AM. The formating on the cell is
HH:MM.