If your social media profiles contain a link to your website, then you’ve turned your engagement into another channel for website traffic. Just be sure to engage moderately and in a sincere way, and avoid including links to your website in your comments—lest you appear spammy and hurt your online and business reputation. Increased traffic should not be the goal of your engagement, but rather a secondary result.
Hey Ted, thanks for the great questions! The peak times refer to your particular time zone, if you are targeting an audience that resides in the same zone as you. You can also use tools to find out when most of your audience is online. For example, Facebook has this built into their Page Insights. For Twitter, you can use https://followerwonk.com/. Many social posting tools also offer this functionality.