I live in Australia and have been trying Second Life for the last few months. I've joined some groups and every so often I get notices from them about events. The only trouble with those notices is that often the writer assumes that everyone who reads them is at more or less their local time, or at Linden time.
That's OK, but also they assume that the date is the same. Living west of the international dateline means that I'm often "one day ahead" (for example, 9/11 was actually 9/12 here). This can sometimes be confusing.
My suggestion is, that in addition to the browser displaying time on the title bar, that it also show date and/or day as well. That would help simply things.