Calendar3 - Version 1.0 Calendar3 is a simple program that outputs the entire calendar for any year after 1752. It allows the user to see a full six months at a time. This makes it easier to look ahead when you wish to plan. Use it to plan a trip or see what day of the week a birthday is on this year. Best of all, it is fast and easy to use. In four keystrokes (the four digits in the year) you can access the calendar that you want to see. Requires zero technical knowledge and it is extremely small.