Provided by: python3-srt_3.5.3-1_all 

NAME
srt-fixed-timeshift - SRT subtitle processing tool
DESCRIPTION
usage: srt fixed-timeshift [-h] [--input FILE] [--output FILE] [--inplace]
[--no-strict] [--debug] [--ignore-parsing-errors]
[--encoding ENCODING] --seconds SECONDS
Shifts a subtitle by a fixed number of seconds.
options:
-h, --help
show this help message and exit
--input FILE, -i FILE
the file to process (default: stdin)
--output FILE, -o FILE
the file to write to (default: stdout)
--inplace, -p
modify file in place
--no-strict
allow blank lines in output, your media player may explode
--debug
enable debug logging
--ignore-parsing-errors, -c
try to keep going, even if there are parsing errors
--encoding ENCODING, -e ENCODING
the encoding to read/write files in (default: utf8)
--seconds SECONDS
how many seconds to shift
examples:
Make all subtitles 5 seconds later
$ srt fixed-timeshift --seconds 5
Make all subtitles 5 seconds earlier
$ srt fixed-timeshift --seconds -5
srt-fixed-timeshift 3.5.3 June 2023 SRT-FIXED-TIMESHIFT(1)