Dude! Read carefully the advices that we gave you !

I guess boo_radley was correct in pointing out "what exactly do you mean by decimal?" , cause judging by the way you are doing this, you somehow got our advices wrong

Everybody was telling you to either:

• use epoch time, or
• use the database's native time format

We were trying to tell you that you can't reliably compute the elapsed time by just having the starting hour, starting minute, end hour and end minute. If you want to do that, you *must* assume that those times were recorded within the same day, between 00:00am to 23:59pm. Otherwise, you *always* need to know the date to compute the time elapsed

Is there some reason you can't change those entries?