If the subtitles start correctly but drift over time, it may be due to a difference in "Director's Cut" vs. "Theatrical Cut" runtimes. YTS usually distributes the Director's Cut (approx. 162 mins).
Subscene: Often features community-rated subtitles with comments on sync quality. subtitle Zodiac.2007.720p.BluRay.x264.[YTS.AG]
Since this is a standard YTS release, most major subtitle repositories will have a direct match. Search for the exact filename on these platforms: If the subtitles start correctly but drift over
Ensure the subtitle is for 23.976 fps, which is standard for BluRay rips. which is standard for BluRay rips.