how much time has passed and measuring the discrepancy

By this metric, Oblivion was right in the top 3 slot for me. Started playing Friday straight after work, and ended up being late for work Monday morning, no sleep.

In that period also nearly burned my house down - got hungry, put noodles on pot, went back to play for 5 minutes while they cooked. Got hungry, went to put noodles on, saw that I already did that and they were on fire.