Java Android 获取当前 UTC 时间
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Android get Current UTC time
提问by xger86x
What is the function to get the current UTC time. I have tried with System.getCurrentTime but i get the current date and time of the device.
获取当前UTC时间的函数是什么。我已经尝试过 System.getCurrentTime，但我得到了设备的当前日期和时间。
Thanks
谢谢
采纳答案by Josef Pfleger
System.currentTimeMillis()does give you the number of milliseconds since January 1, 1970 00:00:00 UTC. The reason you see local times might be because you convert a Dateinstance to a string before using it. You can use DateFormats to convert Dates to Strings in any timezone:
System.currentTimeMillis()确实给你自 1970 年 1 月 1 日 00:00:00 UTC 以来的毫秒数。您看到本地时间的原因可能是因为您Date在使用实例之前将其转换为字符串。您可以使用DateFormats在任何时区将Dates转换为Strings：
DateFormat df = DateFormat.getTimeInstance();
df.setTimeZone(TimeZone.getTimeZone("gmt"));
String gmtTime = df.format(new Date());
Also see this related question.
另请参阅此相关问题。
回答by Someone Somewhere
see my answer here:
在这里看到我的答案：
How can I get the current date and time in UTC or GMT in Java?
如何在 Java 中以 UTC 或 GMT 格式获取当前日期和时间？
I've fully tested it by changing the timezones on the emulator
我已经通过更改模拟器上的时区对其进行了全面测试
