oslan

Dear friends,
I would like to get help from you guys on how to calculate the different between 2 input times (in minutes).

for example :

user_input_start_time = 10.25 /* means 10.25 AM */

user_input_end_time = 11.05 /* means 11.05 AM */

total_diff_time = user_input_end_time - user_input_start_time


from the above example , if use calculator, the answer is 0.80, but the
actual total_diff_time is only 0.40 (means 40 minutes).

How to calculate the above case in C programming.

Pls. help me.

Kind regards
Oslan