Gcal displays hybrid and proleptic Julian and Gregorian calendar sheets, respectively, for one month, three months, or a whole year, and also eternal holiday lists for many countries around the globe. It features a very powerful creation of fixed date lists that can be used for reminding purposes (i.e., it can display fixed dates on the day on which they fall and remind the user about them either on screen or by email), and calculate various astronomical data and times of the Sun and the Moon for any location, precisely enough for most purposes.
