Sync SRT Subtitles
Shift subtitle timestamps forward or backward to fix timing drift.
Shift direction
When should you shift subtitle timing?
Use this tool when audio and captions are out of sync, subtitles appear too early or too late, or editing changed the audio position.
How do you move subtitles forward or backward?
Choose a direction, enter milliseconds or seconds, then paste subtitles or drop a subtitle file. The tool recalculates all cue timestamps.
Subtitle timing FAQ
How do I choose delay or advance?
If subtitles appear too early, delay them. If subtitles appear too late, advance them.
What happens to negative timestamps?
Times below zero are clamped to 00:00:00,000 so the exported file remains valid.
Related tools：Use SRT/VTT conversion for format changes, or the AI subtitle translator when you need translated subtitles.
Further reading：Fix subtitle timing, merge, and split SRT subtitles