Unix2Date_New

PSTDate2UTC_New.java

public static Date PSTDate2UTC_New( Date dtDate) {
        if(dtDate==null) return null;
        SimpleDateFormat sdfPST= new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        sdfPST.setTimeZone(TimeZone.getTimeZone("PST8PDT"));
        
        LocalDateTime localtDateAndTime = LocalDateTime.parse(sdfPST.format(dtDate), DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
       
        ZoneId oZoneId = ZoneId.of("America/Los_Angeles");
        ZonedDateTime zdt = ZonedDateTime.of(localtDateAndTime, oZoneId );
        System.out.println("Unconverted date and time in PST: " + zdt);
        

        ZonedDateTime utcDate = zdt.withZoneSameInstant(ZoneOffset.UTC);
          String sDT_UTC=DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss").format(utcDate);
          System.out.println("Converted date and time in UTC sDT_UTC=" + sDT_UTC);
        
  
        
        //localtDateAndTime = LocalDateTime.parse(sDT_UTC, DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
        SimpleDateFormat sdfUTC= new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        sdfUTC.setTimeZone(TimeZone.getTimeZone("UTC"));
        
        Date dtResult=null;

        try {
            dtResult=sdfUTC.parse(sDT_UTC);
        } catch (ParseException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }
        return dtResult;
    }

Unix2Date_New.java

public static Date Unix2Date_New( String sDate) {
    	Date dtReturn=new Date();
    	if(sDate==null) return dtReturn;
    	long longUnix=Long.parseLong(sDate);
    	dtReturn=new Date(longUnix);
    	
    	SimpleDateFormat sdfGMT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
    	sdfGMT.setTimeZone(TimeZone.getTimeZone("UTC"));     
    	SimpleDateFormat sdfPST = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
    	sdfPST.setTimeZone(TimeZone.getTimeZone("America/Los_Angeles"));   
    	
    	SimpleDateFormat sdfResult = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'"); //default tz
    	//sdfResult.setTimeZone(TimeZone.getTimeZone("America/Los_Angeles"));
    	//SimpleDateFormat sdfResult = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'000Z'"); //default tz
    	
		String sGMT=sdfGMT.format(dtReturn);

		System.out.println("sdfGMT="+sGMT);
		String sPST = sdfPST.format(dtReturn);
		System.out.println("sPST="+sPST);
		String sDefault = sdfResult.format(dtReturn);
		System.out.println("sDefault="+sDefault);

		Date dtTemp_PST=null;
		Instant oTimestamp =Instant.ofEpochMilli(longUnix);
		String sInstance=oTimestamp.toString();
		System.out.println("sInstance="+sInstance);
		try {
			dtTemp_PST=sdfResult.parse(sInstance);
		} catch (ParseException e) {
			e.printStackTrace();
		} 		

    	return dtTemp_PST;
    }