It looks like the exact opening hours of this gate are posted there; we can see the sign on the Mapillary footage, but the picture is not sharp enough.
https://www.mapillary.com/app/?pKey=1151587579150455

You did not include this information in your note, but if you took a detailed picture or wrote those hours down, please reopen a note here.

https://www.openstreetmap.org/node/1661780230