How long does employer have to send final check?

Recently quit a job due to being offered a better job with better pay. HR told me my final check will be mailed to me and she said if I change my address within a year to be sure to call so they can update it? I don’t expect a final check to be mailed in a year lol I thought it would be like a week at the most. I’m in California in case it’s different from state to state