How quick do marijuana related expungements go through?

Was hired for a job, got flagged, had to try and expunge my arrest. On the superior court it says I meet the requirements for expungement under the marijuana and hashish act or whatever, so I'm just trying to find out how long it will take to go through so I can start my job. It was 10 years ago, no arrests or convictions or anything since. First offense as well.