To calculate time without loading times: hours x 3600 and minutes x 60 to calculate all in seconds and then the final ecuation will be divided by 60 to calculate it in minutes and the result without tenths will be multiplied by 60 and rested from the time in seconds to then add this time to the minutes.

All load times are in order. Note that not all cinematics are loading times, if a cinematic shows "press scape to skip" instantly when you press scape, instead of showing "loading..." then its not a loading time and it will not be counted.
The times start the exact frame the camera turns black and they end the frame before the cinematic ends.
0.31 seconds first cinematic (started a bit earlyer the time)
3:33.34 3:43.24 = (3 × 60 + 43.24) (3 × 60 + 33.34) = 9.9 seconds
13:52.01 14:00.18 = (14 × 60 + 0.18) (13 × 60 + 52.01) = 8.17
15:57.68 16:14.11 = (16 × 60 + 14.11) (15 × 60 + 57.68) = 16.43
17:18.66 17:33.48 = (17 × 60 + 33.48) (17 × 60 + 18.66) = 14.82
19:30.95 19:45.76 = (19 × 60 + 45.76) (19 × 60 + 30.95) = 14.81
21:01.45 21:10.76 = (21 × 60 + 10.76) (21 × 60 + 1.45) = 9.31
23:04.50 23:20.10 = (23 × 60 + 20.10) (23 × 60 + 4.50) = 15.6
24:13.64 24:21.12 = (24 × 60 + 21.12) (24 × 60 + 13.64) = 7.48
26:23.08 26:39.27 = (26 × 60 + 39.27) (26 × 60 + 23.08) = 16.19
27:43.70 27:52.92 = (27 × 60 + 52.92) (27 × 60 + 43.70) = 9.22
31:29.52 31:45.92 = (31 × 60 + 45.92) (31 × 60 + 29.52) = 16.4
37:34.36 37:41.84 = (37 × 60 + 41.84) (37 × 60 + 34.36) = 7.48
38:15.95 38:22.29 = (38 × 60 + 22.29) (38 × 60 + 15.95) = 6.34
39:32.05 39:39.68 = (39 × 60 + 39.68) (39 × 60 + 32.05) = 7.63
51:10.02 51:29.53 = (51 × 60 + 29.53) (51 × 60 + 10.02) = 19.51
54:37.13 54:50.15 = (54 × 60 + 50.15) (54 × 60 + 37.13) = 13.02
1:00:40.03 1:00:58.25 = (58.25) (40.03) = 18.22
1:01:14.88 1:01:33.29 = (1 × 60 + 33.29) (1 × 60 + 14.88) = 18.41
1:05:25.91 1:05:40.47 = (5 × 60 + 40.47) (5 × 60 + 25.91) = 14.56
1:11:00.49 1:11:12.29 = (11 × 60 + 12.29) (11 × 60 + 0.49) = 11.8
1:13:38.59 1:13:49.41 = (13 × 60 + 49.41) (13 × 60 + 38.59) = 10.82
1:20:59.11 1:21:16.03 = (21 × 60 + 16.03) (20 × 60 + 59.11) = 16.92
1:28:06.66 1:28:25.58 = (28 × 60 + 25.58) (28 × 60 + 6.66) = 18.92
1:29:47.56 1:30:01.48 = (30 × 60 + 1.48) (29 × 60 + 47.56) = 13.92
1:40:22.29 1:40:29.30 = (40 × 60 + 29.30) (40 × 60 + 22.29) = 7.01
1:41:55.06 1:41:56.43 = (41 × 60 + 56.43) (41 × 60 + 55.06) = 1.37

0.31+9.9+8.17+16.43+14.82+14.81+9.31+15.6+7.48+16.19+9.22+16.4+7.48+6.34+7.63+19.51+13.02+18.22+18.41+14.56+11.8+10.82+16.92+18.92+13.92+7.01+1.37 = 324.57

324.57 / 60 = 5.4095
5 x 60 = 300
324.57 300 = 24.57

final time of the load times = 5 minutes and 24.57 seconds

irl time = 1:41:56.43

1:41:56.43 5:24.57 = 1:36:31.86

final time without loads: 1:36:31.86

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