Maybe a forum diffforhumans(time) bug?

If I create a new thread, when I visit /discuss the subtitle diffforhumans(time) shows correctly, however, when I visit the thread itself page /discuss/channels/general/some-title the diffforhumans(time) does not seem to display correctly. Am I the only one facing this problem? I am not from USA.

I just realized that the thread page shows the actual date rather than diffforhumans, the date does not seem to be correct to me though.