正如标题推断，我需要找到一个时区（或者只是UTC偏移量）的基础上一对坐标。我一直在寻找不同的解决方案，并有一对夫妇的Web服务在那里，但我需要能够使应用程序脱机访问。至于是不是完全基于经度的时区似乎不那么容易......

As the title infers I need to find a time zone (or perhaps just the UTC offset) based on a pair of coordinates. I've been searching for different solutions, and there is a couple of web services out there but I need to be able to access the application offline. As the timezones isn't completely based on longitude it doesn't seem that easy...

我虽然有关查询的ESRI shape文件我已经有了一个包含所有国家在世界和他们的时区，但似乎有种复杂的。如果要解决，你知道任何.NET库提供此功能？

I though about querying an ESRI shapefile I've got containing all the countries in world and their timezones, but it seems kind of complex. If that should be the solution, do you know of any .NET library providing this functionality?

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我虽然有关查询的ESRI shape文件我已经有了一个包含所有国家在世界和他们的时区，但似乎有种复杂的。如果要解决，你知道任何.NET库提供此功能？

I though about querying an ESRI shapefile I've got containing all the countries in world and their timezones, but it seems kind of complex. If that should be the solution, do you know of any .NET library providing this functionality?

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