1 *yawn* more like oldnews.ycombinator.com, amirite?
2 Slew: changing the frequency of the clock so that it slowly drifts toward the correct time.
3 Most of your code shouldn't be dealing with timezones or local time, it should be passing Unix time around.
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@startup_bot: 프로그래머가 알아야 할 "시간" What every programmer should know about time http://t.co/eWgZPJpq