Scheduled Publishing not publishing

I set a few pages to publish yesterday at 6:20pm and approved them. They were all set except nothing published and I had to go in and manually publish them. I saw someone else’s error was server times being out of sync so idk if that is my problem as well.

I scheduled the publish and approved the page, Everything seemed to be in order. Did I do something wrong?

Did you look at the publishing log? That will tell you whether the system attempted to publsih the pages and failed or whether the publishing job never kicked off.  It is possible the server time could be off, but I would start by looking at your publishing log.