On Fri, Sep 4, 2015 at 1:37 PM, Carl Meyer <[email protected]> wrote: > Principle of least surprise for casual users. On this question, "you > should use UTC for arithmetic" is equivalent to "you should use a period > recurrence library for period arithmetic." >
Keep in mind that the standard library should not only support "casual users", but also those who will write a "period recurrence library" for those "casual users." This is where classic arithmetic is indispensable.
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