Hours not representative

I have 177 hours of playtime with my pacts and 223 hours with my weapons.

I've almost always played with two weapons, but 223/2 = ~112.
If we assume I played 5 hours with a single weapon (which isn't far off), then I'm missing 60 hours of pact playtime (177 - 112 + 5).

I might have missed something! I don't think so, but if I have, I apologize and I'd like to know what I'm missing ^^'