in translate_captions/captions_helper.py [0:0]
def formatTimeVTTtoSeconds(self,timeHMSf):
hours, minutes, seconds = (timeHMSf.split(":"))[-3:]
hours = int(hours)
minutes = int(minutes)
seconds = float(seconds)
timeSeconds = float(3600 * hours + 60 * minutes + seconds)
return str(timeSeconds)