Java SimpleDateFormat将解析字符串解释为UTC [英] Java SimpleDateFormat interpret parse-string as UTC

问题描述

我的时区是GMT + 1。

my timezone is GMT+1.

所以日期 - 22.09.1985 00：00UTC打印Sun Sep 22 01:00： 00 CEST 1985onstring函数。

so a "Date"-object with "22.09.1985 00:00UTC" prints "Sun Sep 22 01:00:00 CEST 1985" on the tostring function.

现在我试图通过解析22/09/1985with simpleDateFormat

Now i'm trying to create this date by parsing "22/09/1985" with simpleDateFormat

SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
sdf.setTimeZone(TimeZone.getDefault());
Date d = sdf.parse("22/09/1985");
    => Sun Sep 22 00:00:00 CEST 1985

SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
Date d = sdf.parse("22/09/1985");
    => Sun Sep 22 02:00:00 CEST 1985

如何配置simpleedateformat创建一个Date打印Sun Sep 22 01:00:00 CEST 1985，输入字符串22/09/1985？

how can i configure simpledateformat that it creates an Date which prints "Sun Sep 22 01:00:00 CEST 1985" with input string "22/09/1985"?

推荐答案

我的假设是错误的，

22.09.1985 00:00UTC is actually 22.09.1985 02:00CET

so

SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
Date d = sdf.parse("22/09/1985");

正是我想要的，我比较的日期是错误的。

is exactly what i wanted, the date i compared it with was wrong.

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