Comment 19 for bug 1906462

My recommendation for the quickest way to resolve it - don't try to set the timezone, since I discovered in the context of thinking about a test plan for another bug that there's no way to explicitly set the timezone _within_ the test code short of doing a lot of extensive mocking of Date or using the TZ environment variable. Instead, I suggest grabbing the current timezone, whatever it happens to be, and using that as part of setting up the start and end date values in the relevant test.