GPS返回提前一天？ [英] gps returns one day ahead?

问题描述

在我的Andr​​oid应用程序，我读GPS数据和GPS时间。出于某种原因，GPS返回明天的日期。任何人都知道这是为什么？

In my android app I read GPS data and GPS time. For some reason GPS returns tomorrow's date. Anybody knows why?

我得到的数据是这样的：（它总是好的）。错误在4.0.3？！

I get data like this: (it was always good). Bug in 4.0.3?!

position.GPSTime = new Date(loc.getTime());

修改

我把所有的时间在UTC。在生产这个程序是1年 - 结果我从1小时前展示，你可以看到他们是UTC时间。在左 - 时间从位置服务 - 设备报​​告并在合适的时机。我没有任何混乱，这些日期一般为1-2秒分开。

I keep ALL times in UTC. This app being in production for 1 year - results I'm showing from 1hr ago and you can see they are UTC times. On a left - time reported by device and on a right - time from location service. I'm not confusing anything, those dates usually 1-2 seconds apart.

编辑2

请参阅从我的调试器拍摄从我的手机！用了2分钟前（〜10：10 AM CST）

See shot from my debugger from my phone!! Took 2 minutes ago (~10:10 AM CST)

推荐答案

GPS时间被浪费了前pressed中的协调世界时。基准时间是在伦敦的时间。你感到困惑与您当地的时间，这是在一个时区是比UTC时间1天。

GPS time is being expressed in Coordinated Universal Time. The reference time is the time in London. You're getting confused with your local time which is in a time zone that's behind UTC time by 1 day.

在很多故障排除和研究，我碰到这个code谷歌文章的问题23937：GPS提供商：android.location.Location.getTime（）返回在4.0.3 / Nexus S的错误的UTC时间戳记，这似乎说明了同样的症状。

After much troubleshooting and research, I came across this Code Google article Issue 23937: GPS Provider : android.location.Location.getTime() returns wrong UTC timestamp on 4.0.3 / Nexus S which seems to describe the same symptoms.

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