blocks|key|2017995|text|尝试在此之前设置|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2017996|TimeZone.setDefault(TimeZone.getTimeZone("Europe/London"));|code-block|syntax|javascript|2017997|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try set it before
<pre><code>TimeZone.setDefault(TimeZone.getTimeZone(&quot;Europe/London&quot;));
</code></pre>

blocks|key|5780085|text|你可以使用来做这件事，现在可以通过Android+API+Desugaring降低Android+API的级别。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|5780086|public+static+void+main(String[]+args)+{
++++//+(nearly)+your+example+pattern+for+output+(u+is+better+here)
++++final+String+DATE_FORMAT+=+"uuuu-MM-dd+HH:mm";
++++//+use+it+to+create+an+output+formatter
++++DateTimeFormatter+outputDtf+=+DateTimeFormatter.ofPattern(DATE_FORMAT);
++++//+your+example+String
++++String+exampleDate+=+"Mon+Sep+14+11:30:00+GMT%2B03:00+2020";
++++//+parse+it+with+a+suitable+formatter+using+a+specific+pattern+and+a+Locale+for+names
++++DateTimeFormatter+parserDtf+=+DateTimeFormatter.ofPattern("EEE+MMM+dd+HH:mm:ss+O+uuuu",
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++Locale.ENGLISH);
++++//+then+parse+the+example+String
++++OffsetDateTime+odt+=+OffsetDateTime.parse(exampleDate,+parserDtf);
++++//+get+your+local+offset+(the+one+of+your+device)
++++ZoneOffset+localOffset+=+OffsetDateTime.now().getOffset();
++++//+and+adjust+the+offset+to+your+local+one
++++OffsetDateTime+localOdt+=+odt.withOffsetSameInstant(localOffset);
++++//+and+output+it+(on+android,+use+log...)
++++System.out.println(odt.format(outputDtf));++//+example+datetime
++++System.out.println(localOdt.format(outputDtf));+//+same+time+in+local+offset
}|code-block|syntax|javascript|5780087|此代码输出|5780088|2020-09-14+11:30
2020-09-14+10:30|5780089|请注意，输出--当然--是我当前的偏移量，也就是UTC%2B02:00。|style|BOLD|5780090|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.android.com/studio/write/java8-support^0|H|M|0|0|0|0|0|0|4|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@$A|Z|B|10|1|11]]|C|$]]|$1|D|3|E|5|F|7|12|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|13|8|@]|9|@]|C|$]]|$1|K|3|L|5|F|7|14|8|@]|9|@]|C|$G|H]]|$1|M|3|N|5|6|7|15|8|@$A|16|B|17|O|P]]|9|@]|C|$]]|$1|Q|3|-4|5|6|7|18|8|@]|9|@]|C|$]]]|R|$S|$5|T|U|V|C|$W|X]]]]

You could use <a href="https://docs.oracle.com/javase/8/docs/api/java/time/package-summary.html" rel="nofollow noreferrer"><code>java.time</code></a> for this, it is made available to lower Android API levels via <a href="https://developer.android.com/studio/write/java8-support" rel="nofollow noreferrer">Android API Desugaring</a> now.
<pre><code>public static void main(String[] args) {
 // (nearly) your example pattern for output (u is better here)
 final String DATE_FORMAT = &quot;uuuu-MM-dd HH:mm&quot;;
 // use it to create an output formatter
 DateTimeFormatter outputDtf = DateTimeFormatter.ofPattern(DATE_FORMAT);
 // your example String
 String exampleDate = &quot;Mon Sep 14 11:30:00 GMT+03:00 2020&quot;;
 // parse it with a suitable formatter using a specific pattern and a Locale for names
 DateTimeFormatter parserDtf = DateTimeFormatter.ofPattern(&quot;EEE MMM dd HH:mm:ss O uuuu&quot;,
 Locale.ENGLISH);
 // then parse the example String
 OffsetDateTime odt = OffsetDateTime.parse(exampleDate, parserDtf);
 // get your local offset (the one of your device)
 ZoneOffset localOffset = OffsetDateTime.now().getOffset();
 // and adjust the offset to your local one
 OffsetDateTime localOdt = odt.withOffsetSameInstant(localOffset);
 // and output it (on android, use log...)
 System.out.println(odt.format(outputDtf)); // example datetime
 System.out.println(localOdt.format(outputDtf)); // same time in local offset
}
</code></pre>
This code outputs
<pre class="lang-none prettyprint-override"><code>2020-09-14 11:30
2020-09-14 10:30
</code></pre>
Please note that the output has — of course — taken my current offset, which is UTC+02:00.

blocks|key|5780128|text|试用Locale的getDefault()方法|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|CODE|entityRanges|data|5780129|public+static+String+dateToString(Date+date){
++++DateFormat+dateFormat+=+new+SimpleDateFormat(General.DATE_FORMAT,+Locale.getDefault());
++++dateFormat.setTimeZone(TimeZone.getDefault());
++++if(date+==+null)
++++++++return+"";
++++return+dateFormat.format(date);
}|code-block|syntax|javascript|5780130|希望它能为你工作。谢谢。|5780131|entityMap^0|2|6|9|C|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|D]]|E|@]|F|$]]|$1|G|3|H|5|I|7|U|8|@]|E|@]|F|$J|K]]|$1|L|3|M|5|6|7|V|8|@]|E|@]|F|$]]|$1|N|3|-4|5|6|7|W|8|@]|E|@]|F|$]]]|O|$]]

Try out the <code>getDefault()</code> method of Locale
<pre><code>public static String dateToString(Date date){
 DateFormat dateFormat = new SimpleDateFormat(General.DATE_FORMAT, Locale.getDefault());
 dateFormat.setTimeZone(TimeZone.getDefault());
 if(date == null)
 return &quot;&quot;;
 return dateFormat.format(date);
}
</code></pre>
Hope it will work for you. Thank you.

I am getting a <code>Date</code> datatype from the database like this <code>Mon Sep 14 11:30:00 GMT+03:00 2020</code>.I want to change this value to a string so I used this function.
<pre><code>public static final String DATE_FORMAT = &quot;yyyy-MM-dd HH:mm&quot;;


public static String dateToString(Date date){
 DateFormat dateFormat = new SimpleDateFormat(General.DATE_FORMAT);
 dateFormat.setTimeZone(TimeZone.getDefault());
 if(date == null)
 return &quot;&quot;;
 return dateFormat.format(date);
}
</code></pre>
This function is given me this output <code>2020-09-14 11:30</code> but it should be <code>2020-09-14 02:30</code> according to my android device time zone. Any suggestions ?

Change Date to a string on the local time zone of the device

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在从数据库中获取一个Date数据类型，就像这样Mon Sep 14 11:30:00 GMT+03:00 2020.I想要将这个值更改为一个字符串，所以我使用了这个函数。public static final String DATE_FORMAT = "yyyy-MM-dd HH:mm";public static...

问将日期更改为设备本地时区上的字符串
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