时区转换 [英] Timezone conversion

问题描述

我需要在我的项目中将一个时区转换为另一个时区。

我可以将我当前的时区转换为另一个，但不能从不同的时区转换另一个。

例如我在印度，我可以使用转换为印度到美国Date d = new Date（）; 并将其分配给日历对象并设置时区。

但是，我不能从不同的时区到另一个时区。例如，我在印度，但是我无法将时区从美国转移到英国。

解决方案

/ p>

转换时间时区

在时区之间转换时间

  import java .util.Calendar; 
 import java.util.GregorianCalendar; 
 import java.util.TimeZone; 
 
 public class TimeZoneExample {
 public static void main（String [] args）{
 //创建一个日历对象，并根据本地
 / /时区
日历localTime = Calendar.getInstance（）; 
 localTime.set（Calendar.HOUR，17）; 
 localTime.set（Calendar.MINUTE，15）; 
 localTime.set（Calendar.SECOND，20）; 
 
 int hour = localTime.get（Calendar.HOUR）; 
 int minute = localTime.get（Calendar.MINUTE）; 
 int second = localTime.get（Calendar.SECOND）; 
 
 
 //打印本地时间
 System.out.printf（本地时间：％02d：％02d：％02d\\\
，小时，分钟，秒）; 
 
 
 //创建一个表示德国时区的日历对象。然后我们
 //用当地时间的值来润滑日历的时间
 
日历germanyTime = new GregorianCalendar（TimeZone.getTimeZone（Europe / Berlin））; 
 germanyTime.setTimeInMillis（localTime.getTimeInMillis（））; 
 hour = germanyTime.get（Calendar.HOUR）; 
 minute = germanyTime.get（Calendar.MINUTE）; 
 second = germanyTime.get（Calendar.SECOND）; 
 
 
 //打印德国时区的当地时间
 System.out.printf（德国时间：％02d：％02d：％02d\\\
，小时，分，秒）; 
} 
} 
  

I need to convert from one timezone to another timezone in my project.

I am able to convert from my current timezone to another but not from a different timezone to another.

For example I am in India, and I am able to convert from India to US using Date d=new Date(); and assigning it to a calendar object and setting the time zone.

However, I cannot do this from different timezone to another timezone. For example, I am in India, but I am having trouble converting timezones from the US to the UK.

解决方案

Some examples

Convert time between timezone

Converting Times Between Time Zones

import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.TimeZone;

public class TimeZoneExample {
    public static void main(String[] args) {
        // Create a calendar object and set it time based on the local
        // time zone
        Calendar localTime = Calendar.getInstance();
        localTime.set(Calendar.HOUR, 17);
        localTime.set(Calendar.MINUTE, 15);
        localTime.set(Calendar.SECOND, 20);

        int hour = localTime.get(Calendar.HOUR);
        int minute = localTime.get(Calendar.MINUTE);
        int second = localTime.get(Calendar.SECOND);


        // Print the local time
        System.out.printf("Local time  : %02d:%02d:%02d\n", hour, minute, second);


        // Create a calendar object for representing a Germany time zone. Then we
        // wet the time of the calendar with the value of the local time

        Calendar germanyTime = new GregorianCalendar(TimeZone.getTimeZone("Europe/Berlin"));
        germanyTime.setTimeInMillis(localTime.getTimeInMillis());
        hour = germanyTime.get(Calendar.HOUR);
        minute = germanyTime.get(Calendar.MINUTE);
        second = germanyTime.get(Calendar.SECOND);


        // Print the local time in Germany time zone
        System.out.printf("Germany time: %02d:%02d:%02d\n", hour, minute, second);
    }
}

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