Hello,
I was able to solve my previous problem. I can record the time on my SD-Card. My current problem is in reading the time record on my SD-Card. I would only like to read the last hour that my SD-Card has to record and not all the content. Indeed I created a file in my SD-card. In this file I record each time the time I press the Start button on my Display. I would like to be able to read only the last hour when I pressed the Start button and not every hour.
Thank you for helping me