This is my boyfriend first time to prison they gave him 30 months prison he already did 6 in county.. he got locked up in August of 2017 will he be out next year 2019? But his release date says Feb of 2020?

He will definitely get credit for the six months he did in county. He probably has to do 85% of the sentence (assuming he stays out of trouble and remains incident-report free). That would be 25.5 months. What jurisdiction did he get sentenced in? Where did you see the release date (that might not have figured in the good time as of that listing)?