这段代码在我正在开发的应用程序中很有帮助:

    Instant date = null;
    Date sdf = null;
    String formatTemplate = "EEE MMM dd yyyy HH:mm:ss";
    try {
        SimpleDateFormat isoFormat = new SimpleDateFormat("EEE MMM dd yyyy HH:mm:ss");
        isoFormat.setTimeZone(TimeZone.getTimeZone(ZoneId.of("US/Pacific")));
        sdf = isoFormat.parse(timeAtWhichToMakeAvailable);
        date = sdf.toInstant();

    } catch (Exception e) {
        System.out.println("did not parse: " + timeAtWhichToMakeAvailable);
    }

    LOGGER.info("timeAtWhichToMakeAvailable: " + timeAtWhichToMakeAvailable);
    LOGGER.info("sdf: " + sdf);
    LOGGER.info("parsed to: " + date);

在这里，您可以获得日期如“2020-03-11T20:16:17”并返回“11/Mar/2020 - 20:16”

 private String transformLocalDateTimeBrazillianUTC(String dateJson) throws  ParseException {
    String localDateTimeFormat = "yyyy-MM-dd'T'HH:mm:ss";
    SimpleDateFormat formatInput = new SimpleDateFormat(localDateTimeFormat);

    //Here is will set the time zone
    formatInput.setTimeZone(TimeZone.getTimeZone("UTC-03"));

    String brazilianFormat = "dd/MMM/yyyy - HH:mm";
    SimpleDateFormat formatOutput = new SimpleDateFormat(brazilianFormat);
    Date date = formatInput.parse(dateJson);
    return formatOutput.format(date);
}

calendar是使用JDK类处理时区的常用方法。Apache Commons还有一些可能有用的替代方案/实用程序。Edit Spong的留言提醒我，我听说Joda-Time真的很不错(尽管我自己没有用过)。

package org.example;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;

public class time {
   public static void main(String[] args) {
       SimpleDateFormat sdf=new SimpleDateFormat("yyyy/MM/dd HH:mm");
       sdf.setTimeZone(TimeZone.getTimeZone("Asia/Jakarta"));
       Date date=new Date();
       sdf.format(date);
       System.out.println(sdf.format(date));
   }
}

如果有人需要这样做，如果您需要将XMLGregorianCalendar时区从UTC转换为当前时区，那么您所需要做的就是将时区设置为0，然后调用toGregorianCalendar()—它将保持相同的时区，但Date知道如何将其转换为您的时区，因此您可以从那里获得数据。

XMLGregorianCalendar xmlStartTime = DatatypeFactory.newInstance()
    .newXMLGregorianCalendar(
        ((GregorianCalendar)GregorianCalendar.getInstance());
xmlStartTime.setTimezone(0);
GregorianCalendar startCalendar = xmlStartTime.toGregorianCalendar();
Date startDate = startCalendar.getTime();
XMLGregorianCalendar xmlStartTime = DatatypeFactory.newInstance()
    .newXMLGregorianCalendar(startCalendar);
xmlStartTime.setHour(startDate.getHours());
xmlStartTime.setDay(startDate.getDate());
xmlStartTime.setMinute(startDate.getMinutes());
xmlStartTime.setMonth(startDate.getMonth()+1);
xmlStartTime.setTimezone(-startDate.getTimezoneOffset());
xmlStartTime.setSecond(startDate.getSeconds());
xmlStartTime.setYear(startDate.getYear() + 1900);
System.out.println(xmlStartTime.toString());

结果:

2015-08-26T12:02:27.183Z
2015-08-26T14:02:27.183+02:00

DateFormat使用。例如,

SimpleDateFormat isoFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
isoFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
Date date = isoFormat.parse("2010-05-23T09:01:02");