1 00:01:00,000 --> 00:01:02,000 Hello 2 00:01:03,000 --> 00:01:05,000 world

subtitle-tool merge-shift --input SONE-385-engsub.srt --gap 2 --shift -00:02:00 --output merged_shifted.srt Or as a button in a subtitle editor: . Would you like a Python script implementing this exact feature?