Mike, have a look at Chip's page here for a way to do it

http://www.cpearson.com/excel/DateTimeEntry.htm

And if you are new to macros you may also what to have a look here on
getting started with macros
http://www.mvps.org/dmcritchie/excel/getstarted.htm


--
Paul B
Always backup your data before trying something new
Please post any response to the newsgroups so others can benefit from it
Feedback on answers is always appreciated!
Using Excel 2002 & 2003

"Mike" wrote in message
...
Is it possible to have colons input automatically when typing a time in?
example: 140000 would be 14:00:00.