Render correct `dt-published` for step counts
https://www.jvt.me/mf2/c3f96734-aa2e-4986-a179-68d5676e2217/ shows 2019-09-21T17:06:07+0100
whereas the correct time is <meta property=article:published_time content=2019-09-01T00:00:00+0000>
https://www.jvt.me/mf2/c3f96734-aa2e-4986-a179-68d5676e2217/ shows 2019-09-21T17:06:07+0100
whereas the correct time is <meta property=article:published_time content=2019-09-01T00:00:00+0000>