Based on available information, "sone385engsub convert020002 min hot" appears to be a specific file name or search string
ffmpeg -i input.mkv -map 0:s:0 subs.srt
(Shifts everything by 2.5 seconds)
FFmpeg uses -t for duration (seconds) and -to for end timestamp. If min means minutes, convert to seconds: 2 minutes = 120 seconds. sone385engsub convert020002 min hot
.mkv, .mp4, .avi, etc.+2.5 seconds (or whatever offset needed)