datetimekind.unspecified理解

datetimekind.unspecified类型的DateTime表示一个相对的时间点，就是说它没有固定的初始时间标准，而只是时间点的描述

ToLocalTime：// If inputDt.Kind is DateTimeKind.Unspecified, the conversion is performed as if inputDt was universal time.

ToUniversalTime：// If inputDt.Kind is DateTimeKind.Unspecified, the conversion is performed as if inputDt was local time.