Nintendo's Wii U eShop is blocking users from purchasing PEGI-18 (things that would be rated M for Mature over here in the States) in Europe for twenty hours of the day. You can't buy games or even access trailers until Nintendo is apparently satisfied that every single minor in Europe is fast asleep.
This odd (maybe we can just go ahead and call it stupid) 'Nintendo after dark' situation is apparently a blanket response to the variety of rules governing mature content for youngsters in European countries. However, users report that even when birthday data is added indicating the user is over 18, store pages for mature-rated games remain inaccessible until 11pm, are available for four hours, and then lock up again at 3am. This even happens on consoles with parental controls turned off. One imagines that third party publishers are also dissatisfied with an unnecessary regulation that renders their products digitally off-limits for 83% of the day.
Nintendo customer service sent the following response to an aggrieved Italian customer:
"Nintendo has always aimed to offer gameplay experiences suited to all age groups, observing carefully all the relevant regulations regarding content access that are present in the various European countries. We have thus decided to restrict the access to content which is unsuitable to minors (PEGI) to the [11 p.m. to 3 a.m.] time window."
It's worth noting that Sony and Microsoft manage to observe EU and national regulations on mature content without placing such a burden on their customers and software partners. Nintendo of Europe's PR has yet to comment, but we'll update you when (or if) they explain themselves.