It's strange. It's the first thing I see when I enter this page. It's now confirmed for the second time.
But as soon as I click a link and go back all is normal.
I have seen this in XF 2.2 as well during the last years (with the phrase "in X minutes"). I have never experienced this directly on page load, but only a after a while, when I switch between open tabs in my browser.
Thank you for reporting this issue. This was caused by a miscalculation of the page's local load time in the browser, which made every date look like it was in the future. It was fixed in XenForo 2.3.4 through an earlier report of the same problem.