存储用UTC时间
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Q::

    Is it always a good idea to store time in UTC 
      or is this the case where storing in local time is better?

A::

    Generally, it is the best practice to store time in UTC and as mentioned in here and here.





参考
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* 参考1: https://stackoverflow.com/questions/11537106
* 参考2: https://stackoverflow.com/questions/2532729
* 参考3: https://stackoverflow.com/questions/5666836