The ancient Greek Attic Calendar (or Athenian Calendar) is the lunisolar calendar which was used in ancient Attica, the region of Athens.

Showing the Olympiad date alongside the months, with the ability to find any specified date.

This calendar is local to you, instead of Athens time. The length of the month is based around the phase of the moon, and the time of sunset.

This app also contains 56 various festivals and sacrifices that would have been celebrated on these days, with more to be added.
Just tap a day, and see its related info: the day's Gregorian date, the phase of the moon, the day's festivals and/or sacrifices!

Updates adding more related features and information are on the way!