When you are doing something so fun that you simply lose track of time, all of sudden hours passed and you didn't even realize. I love when that happens because that really shows you enjoyed yourself and didn't care enough to keep checking what time it is. I know that when I'm bored or I am doing something really dull, I keep looking at the clock because I just want time to pass. But then when I do something extremely exciting and I don't want the moment to ever end, it passes by in what feels like a second. Isn't that just so ironic? When you want time to pass, it doesn't but when you don't want it to, it goes by way to fast! Losing track of time is a great way to show that you actually relaxed and just let lose for a little bit. You didn't let yourself be defined by what time it was because it just didn't matter. It's like when I go out with my friends and I have a time that I have to leave but I just don't look at the clock all the time because I'm simply enjoying myself so much I don't see the purpose to why I would want to know what time it is.
image taken from here