Calculate the hours, and minutes between two dates and times. Display the time difference both as days, hours, and minutes and entirely as hours and minutes. Also calculate the date and time X hours and Y minutes before or after a date and time.
Draw images (circles, arrows, etc.) on your Windows screen that appear in front of whatever programs are running. Useful to emphasis or clarify the text or diagrams on the screen when giving a presentation by projecting a computer screen.