Note that US/NATO military times do not use colons.
To do what you're asking, see
http://cpearson.com/excel/datetimeentry.htm
In article ,
Mike wrote:
I want to type in 0700 in a cell and press <tab to go to the next cell and
it will auto format it like 07:00 (military time). ex: type in 1400 and it
display as 14:00, etc. In other words, I want to be lazy and not have to type
the colon. How do I need to format the cell?
Thanks... Mike