Why doesn't the badge start at "0 Days" or "Day 1"?

Maybe this is just my OCD talking but it seems kinda off that when I restart my badge, it says "1 Day" and 24 hours later it says "2 days" when only one day went by. For it to make sense, it should say "Day 2" and not "2 days" because it gives the impression that it's been two completed days of NoFap instead of just one.

Anyone knows what I'm talking about? It's not important, I know. Just want to know what you guys think.