Java tutorial
//package com.java2s; import java.util.Calendar; public class Main { /** * Gets the minutes between two Calendars * @param startTime The start time * @param endTime The end time * @return The number of minutes between the two Calendars */ public static double getMinutes(Calendar startTime, Calendar endTime) { if (startTime == null || endTime == null) { return 0; } return ((double) (endTime.getTimeInMillis() - startTime.getTimeInMillis())) / 60000; } }