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struct TIME {
int seconds;
int minutes;
} open_time, close_time, difference;

Thank you so much!👍👍

Thank you!👍👍

Sry, i'm new to programming. Anyway, thanks for your explanation.

Sorry i forgot to say that i use fflush(stdout) to clear the output buffer and i use system("cls") to clear the screen. I assume that my screen will pause for a few seconds before screen clears, but...

I use fflush(stdout) but it doesn't work. The screen clears too soon before my eyes.