Sync subtitles in VLC media player

[Costas]

An easy trick you can use to adjust the subtitle timings in VLC. This trick works as follows :

• Press Shift+H when you hear a specific sentence
• Press Shift+J when the sentence appears in the subtitles
• Press Shift+K to resync the subtitles

source

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or use Subtitle Edit supports batch operation (Tools > Batch Convert)
or use Subtitle Workshop Classic (supports unicode on win10) while Subtitle Workshop NOT!
or use online subtitle shifter
or read raymond application reviews

 

[Costas]

In case of Subtitle Workshop Classic

-remove any extra banner texts from the beginning and ending
-because we want precise of milliseconds open the video to avidemux, write down when the first & last sentence spoken.

open the .srt file to Subtitle Workshop Classic go to Adjust Subtitles