time functions

[phaldom]

I am doing a program for my class. I need to calculate how long someone has been doing something since they started for example sleeping. It needs to take in account for leap year and all that. so can i use difftime to calculate how many seconds from a date entered to now or can i use the time function for that and instead use a date entered not the default date?? Please help i need to get this done

[Texan40]

You can also use a time_t passed to localtime() to get a struct tm. You can then pass that to asctime() or strftime() for string formatting.