[lode]

> Of course OSM can't be updated with up-to-the-minute opening hours at all.

Of course it can. I regularly add opening hours of businesses I frequent on OSM, including special cases like public holidays.

[blendergeek]

But nothing on OSM is "up-to-the-minute". Many OSM data consumers are months behind OSM discourages putting anything temporary on the map. While I do add OSM business hours including public holidays a lot, this isn't always possible when businesses don't have pre-planned holiday schedules.