02:39:850 (1,2,1,2) - i would use the same spacing between 02:39:850 (1,2) - these slider and 02:40:192 (1,2) - these slider (which means 02:40:021 (2,1) - these two needs to be space out, just like 00:44:650 (1,2,1,2) - here)
modified