From Xarka Software
"Today" is a Greek Orthodox Calendar and screen saver that shows every day name days, events, detailed religious and historical information and lots of astronomical data. You can add your own dates, birthdays, countdowns, or print calendars. You can also sync with your contacts in Outlook & Windows Mail so you know when your friends have a name day, birthday or anniversary!
The program also features a screen saver and desktop wallpaper creator that shows cool picture collages of your photos. Collages are created automatically using customizable parameters and can also be printed or used as a header on the printed calendars.
The user interface is in English but to understand the holidays basic greek knowledge is required. The freeware version is installed in over 65,000 computers just in Greece.