I already know that Processing has several functions related to Time and Date.
So for example, if I want to display the date in this format: day-month-year
I can code this way:

1. text(day() + "-" + month() + "-" + year(), 20, 20);
   

Since the month() function only returns integer value from 1 to 12, I've built a simple function to convert this number into the name of the month (like "January", "February" and so on) using switch statement.

1. switch(month())
2. {
3.       case 1:
4.             monthName = "January";
5.             break;
6.       ...
   

But what I really want to know is how can I display the name of the day (like "Sunday", "Monday", etc) ?

This is because day() function only returns an integer value indicating the day number, not the name of the day.
I'm expecting the result like the one below:

Sunday, 10 February 2013