Hello Transformer,
Thank you for reverting the changeset and the clarification. In fact it would've been enough to only revert the incorrect parts ;). I've meanwhile updated it accordingly.

Regarding the opening hours, even the website that you cites as source (of which I'm not certain if this is an allowed source, license-wise) mentions - in their post of May 27 12:30:
- That the "north-south" road opens on the 24th of July, 6:00 AM
- That the east-west road doesn't open until August 18. 
It's also stated in the PDF attached to that same post by the way, with pictures and descriptions.
So either this was lost in translation or this was a bad copy paste (and a day too late, in the wrong date format, yyyy-mm-dd vs dd-mm-yyyy)

Let's just be conservative with changes unless you're really sure, when doing something remotely :). Better to be a day too late or so than to have something incorrect on the map.

Thanks for getting back and happy mapping!