Understanding Google My Business & Local Search
Google Starting to Support Temporary Business Closings
Apparently, Google is now partially supporting temporary business closures with a process and an appropriate messaging on the business Knowledge Panel.
Currently there is no public facing interface for this and the only way to get this done is to create a post in the Google My Business Forum with full business details and then get a top contributor to escalate the problem.
It requires that the business be closed for more than 2 weeks and that their website clearly supports the closure. Note that the change is only currently visible in the Knowledge Panel but that in Maps the business will still be shown as permanently closed. Here is a location showing that status:
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