Havn't had time to check in on the game very much today, so just checked in and realized there was an update. Wasn't expecting an update until at least the Carnival and Valentine's event was over. But I paused all skills to record each time between skill. The variation between skills shouldn't be more than a second at the most for pausing each one. I think someone was interested in calculating the percentage time difference between each skill. No matter the warp/speed bonus, the percentage between each one should be the same. If not, I have no clue, then. But here are the times.

Also, I could've sworn I had these paused. Was going to wait until the after the next update to get a good clean reading on each one right after starting them all up again at lvl 60. =/

Times for each skill:
02:37:46 - Lvl 61 - Humor
04:34:50 - Lvl 61 - Art of Sex
06:43:37 - Lvl 61 - Intelligence
09:05:17 - Lvl 61 - Filming
11:41:07 - Lvl 61 - Seduction
14:32:31 - Lvl 61 - Sweet Talking
17:41:05 - Lvl 61 - Body Building
00:19:16 - Lvl 60 - Acting
02:02:30 - Lvl 60 - Artistry
03:56:03 - Lvl 60 - Tricks

When I took the initial readings, Body Building and Acting were in different levels. Since it looked impossible to tell when Body Building changed from 60 to 61, I took the next reading (paused both) as soon as Acting reached 61. So that should give you that percentage as well.

17:21:39 - Lvl 61 - Body Building
20:49:14 - Lvl 61 - Acting