Perhaps due to the merging of threads moderators do for various reasons?
At this moment I see discrepancies on the front page, rounded and sorted (hours):
- 63, 64, 62, 57, 56, - 30, 27, 22, 22, 12, - 9, 8, - 1, 0.5, 0.5, 0.4, 0.4, 0.4, 0.3, 0.2, 0.2, 0.1, 0.1, 0.1, 0.1, 0.04, 0.03, 0.01, 0.01, 0.01
So 12 out of 30 are strangely shifted by more than an hour.