31K operating hours...
Note the problematic sector count is only 2, it's possible it could last another 3 years that way...
Or, it could be gone in 2-48 hours...
Always assume the latter, put your data elsewhere while you can...prioritize on getting most valuable /irreplaceable data first. (Do no lengthy checkdisk or surface scans, which would only hasten a drive's demise if/when they are on the 'slippery slope of doom')