Loss of time

I don’t know if Loss of time is the way I should describe it? But anyway. Idk if This is normal or what it could be. So I look at the clock and say it’s 5:00. I feel like 20 minutes go by and look at the clock again and it only 5:03. Or like I saw someone post on Facebook about their car wreck and I felt like a few weeks go by and they posted about it again but it happened 7 months again. I’m so confused and don’t know what to think about it? Why is this happening