Batch "sort by"...

[Masina86]

I have lots of subtitles from a series from a friend and lots of them are messed with timecodes and number. I think he changed the timecodes of existing lines thats where the mess is coming from. Anyway i have like 400 subtitles who i need to convert one by one and it is taking a long time.

Is there batch convert sort by start time and i cant find it? Someone have python code for it? Or can it be added to SE by some chance if it is not to much of a hassle?