Java Program to Convert Date to TimeStamp

Last Updated : 27 Nov, 2020

We can convert date to timestamp using the Timestamp class which is present in the sql package.

The constructor of the time-stamp class requires a long value.
So data needs to be converted into a long value by using the getTime() method of the date class(which is present in the util package).

Example:

Input: date is 16 November 2020
Output: 2020-11-16 19:11:24

Explanation: date would be printed along with the current time to milliseconds.

Approach 1:

import the java.sql.Timestamp package.
import the java.util.Date package
Create an object of the Date class.
Convert it to long using getTime() method

Syntax:

public long getTime()

Parameters: The function does not accept any parameter.

Return Value: It returns the number of milliseconds since January 1, 1970, 00:00:00 GTM.

Create an object of the Timestamp class and pass the value returned by the getTime() method.
Finally, print this Timestamp object value.

Java

// Java Program to convert date to time stamp 
  
import java.sql.Timestamp; 
import java.util.Date; 
public class GFG_Article { 
    public static void main(String args[]) 
    { 
        
        // getting the system date 
        Date date = new Date(); 
        
        // getting the object of the Timestamp class 
        Timestamp ts = new Timestamp(date.getTime()); 
        
        // printing the timestamp of the current date 
        System.out.println(ts); 
    } 
}

Output

2020-11-19 04:47:43.624

Approach 2:

We can format the Timestamp value using SimpleDateFormat class.
Initially, by using the Timestamp class, the time is getting displayed in a standard format, but we can format it to our own choice using SimpleDateFormat class.

Java

// Java program to convert date to time-stamp using 
// SimpleDataFormat class and TimeStamp class 
  
import java.sql.Timestamp; 
import java.util.Date; 
import java.text.SimpleDateFormat; 
  
public class GFG { 
    
    public static void main(String args[]) 
    { 
        
        // getting the system date 
        Date date = new Date(); 
        
        // getting the timestamp object 
        Timestamp ts = new Timestamp(date.getTime()); 
        
        // using SimpleDateFormat class,we can format the 
        // time-stamp according to ourselves 
        // getting the timestamp upto sec 
        SimpleDateFormat formatter 
            = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); 
        
       System.out.println(formatter.format(ts)); 
        
       // getting the timestamp to seconds 
       SimpleDateFormat formatter1 
            = new SimpleDateFormat("yyyy-MM-dd HH:mm"); 
        
      // printing the timestamp 
      System.out.println(formatter1.format(ts)); 
          
    } 
}

Output

2020-11-19 04:52:31
2020-11-19 04:52

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