The simple answer is yes. You would be an upgrade CANDIDATE sooner because you would have the minimums required sooner. But as others have pointed out it's unlikely that at the EXACT point you reach the minimums there is a captains bid available to you, so you'll sit there waiting for your seniority to build until you can hold a captains bid, by which time the person hired with the lower time will also have reached the minimums and be just as eligible an upgrade CANDIDATE and then upgrade between you would be based on seniority.