How to correctly set the date and time of an event in a CompactCalendarView?

Question

Java

Understanding the CompactCalendarView library https://github.com/SundeepK/CompactCalendarView . The author gives an example of the code for creating a calendar and setting an event:

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        final CompactCalendarView compactCalendarView = (CompactCalendarView) findViewById(R.id.compactcalendar_view);
        // Set first day of week to Monday, defaults to Monday so calling setFirstDayOfWeek is not necessary
        // Use constants provided by Java Calendar class
        compactCalendarView.setFirstDayOfWeek(Calendar.MONDAY);
       
        // Add event 1 on Sun, 07 Jun 2015 18:20:51 GMT
        Event ev1 = new Event(Color.GREEN, 1433701251000L, "Some extra data that I want to store.");
        compactCalendar.addEvent(ev1);

        // Added event 2 GMT: Sun, 07 Jun 2015 19:10:51 GMT
        Event ev2 = new Event(Color.GREEN, 1433704251000L);
        compactCalendar.addEvent(ev2);

        // Query for events on Sun, 07 Jun 2015 GMT. 
        // Time is not relevant when querying for events, since events are returned by day. 
        // So you can pass in any arbitary DateTime and you will receive all events for that day.
        List<Event> events = compactCalendar.getEvents(1433701251000L); // can also take a Date object
        
        // events has size 2 with the 2 events inserted previously
        Log.d(TAG, "Events: " + events);

        // define a listener to receive callbacks when certain events happen.
        compactCalendarView.setListener(new CompactCalendarView.CompactCalendarViewListener() {
            @Override
            public void onDayClick(Date dateClicked) {
                List<Event> events = compactCalendarView.getEvents(dateClicked);
                Log.d(TAG, "Day was clicked: " + dateClicked + " with events " + events);
            }

            @Override
            public void onMonthScroll(Date firstDayOfNewMonth) {
                Log.d(TAG, "Month was scrolled to: " + firstDayOfNewMonth);
            }
        });
    }

I do not understand what the time 1433701251000L means in creating an event and what kind of format it is. How to set the date I need in this case?

Answer 1

It's called Unix time
https://en.wikipedia.org/wiki/Unix_time
https://www.unixtimestamp.com/