Java 将 DateFormat 时区设置为 GMT+1
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Java set DateFormat timezone to GMT+1
提问by Rui
What is the correct string to set the DateFormat timezone to GMT+1? According the documentation it should be something like "GMT + 00:00". I already tried other forms but apparently I always fallback to GMT (my current timezone).
将 DateFormat 时区设置为 GMT+1 的正确字符串是什么？根据文档，它应该类似于“GMT + 00:00”。我已经尝试过其他形式，但显然我总是退回到格林威治标准时间（我当前的时区）。
Thanks in advance!
提前致谢！
回答by Jon Skeet
You can use
您可以使用
TimeZone fixedUtcPlus1 = new SimpleTimeZone(TimeUnit.HOURS.toMillis(1),
"GMT+1");
format.setTimeZone(fixedUtcPlus1);
Or just:
要不就：
TimeZone zone = TimeZone.getTimeZone("GMT+1");
format.setTimeZone(zone);
(Apologies for the repeated edits around +1 and -1... bad diagnostics on my part. "GMT+1" is fine, but its Etc equivalent is "Etc/GMT-1" - very confusing.)
（为 +1 和 -1 的重复编辑道歉......我的诊断错误。“GMT+1”很好，但它的 Etc 等价物是“Etc/GMT-1”——非常混乱。）
回答by Raman
You can find whole set of time zones via following fragment of code:
您可以通过以下代码片段找到整套时区：
for (String id : TimeZone.getAvailableIDs()) {
System.out.println(id);
}
And reuse it to set timezone directly:
并重用它直接设置时区：
DateFormat df = DateFormat.getDateInstance();
df.setTimeZone(TimeZone.getTimeZone(id));
