/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// your code goes here
		long ms = new Date().getTime();
		System.out.println("Current time: " + new Date().toString());
		System.out.println("Current time: " + ms);
 
		long fifteen = 15 * 60 * 1000;
		long newMs = (ms / fifteen) * fifteen + fifteen;
		System.out.println("Calculated time: " + new Date(newMs));
		System.out.println("Calculated time: " + newMs);
	}
}

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