What class is this?

0
0
10:01
07:58
13:26
15:54
05:37
10:41
25:38
15:00
30:12
12:00
10:06
10:16
07:57
12:00
01:02:46
39:21
40:00
29:57
20:19
33:42
12:00
06:00
13:39
15:46
02:36:58
07:59
22:37
08:00
20:56
08:17
12:00
29:35
07:59
05:00
12:00
10:43
28:40
19:03
10:00
06:01