Java time zone conversion

From , 5 Years ago, written in Java, viewed 226 times.

/*
   * Converts time from sourceTZ TimeZone to destTZ TimeZone.
   * 
   * @return converted time, or the original time, in case the datetime could not be parsed 
   * 
   */
  private String convTimeZone(String time, String sourceTZ, String destTZ)
  {
    final String DATE_TIME_FORMAT = "yyyyMMdd-HH:mm:ss";
 
    SimpleDateFormat sdf = new SimpleDateFormat(DATE_TIME_FORMAT);
 
    Date specifiedTime;
    try {
      if (sourceTZ != null)
        sdf.setTimeZone(TimeZone.getTimeZone(sourceTZ));
      else
        sdf.setTimeZone(TimeZone.getDefault()); // default to server's timezone
      specifiedTime = sdf.parse(time);
    }
    catch (Exception e1) {
      try {
        specifiedTime = new Time(time).getAsDate();
      } catch (Exception e2) {
        // 
        return time;
      }
    }
 
    // switch timezone
    if (destTZ != null)
      sdf.setTimeZone(TimeZone.getTimeZone(destTZ));
    else
      sdf.setTimeZone(TimeZone.getDefault()); // default to server's timezone
 
    return sdf.format(specifiedTime);
  }
//java/2351

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/*
   * Converts time from sourceTZ TimeZone to destTZ TimeZone.
   * 
   * @return converted time, or the original time, in case the datetime could not be parsed 
   * 
   */
  private String convTimeZone(String time, String sourceTZ, String destTZ)
  {
    final String DATE_TIME_FORMAT = "yyyyMMdd-HH:mm:ss";
 
    SimpleDateFormat sdf = new SimpleDateFormat(DATE_TIME_FORMAT);
 
    Date specifiedTime;
    try {
      if (sourceTZ != null)
        sdf.setTimeZone(TimeZone.getTimeZone(sourceTZ));
      else
        sdf.setTimeZone(TimeZone.getDefault()); // default to server's timezone
      specifiedTime = sdf.parse(time);
    }
    catch (Exception e1) {
      try {
        specifiedTime = new Time(time).getAsDate();
      } catch (Exception e2) {
        // 
        return time;
      }
    }
 
    // switch timezone
    if (destTZ != null)
      sdf.setTimeZone(TimeZone.getTimeZone(destTZ));
    else
      sdf.setTimeZone(TimeZone.getDefault()); // default to server's timezone
 
    return sdf.format(specifiedTime);
  }
//java/2351

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Java time zone conversion

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