On the main profile page, it shows Last time viewed, and for a low-rep user like me, I am pretty much the only one who views my profile page, but the last viewed always has low times. I was wondering if the counter only updates when someone else views the page, or if you view it yourself
That isn't the time of the last time you viewed your profile page. It is the last time you were browsing the site. Self views of your own profile do contribute towards that in my experience, but due to caching it may take a while to show.