Keith W wrote:
At the risk of being too trivial, if the figures are already input, can
split them by:

say hour:mins in A1, put B1=INT(A1) (gives hours in B1), C1=(A1-B1)*100
(gives minutes in C1)

Yep, that would do the job for one single entry.
However it would not allow you to add two or more
entries to make a total.

To keep a running total of your flying time
you need something a bit more elaborate.
CV