Calendarium allows you to have real-time and date in the ancient Romans format.
The system to indicate a date in ancient Rome was very different from today.
In the Julian Calendar month there are only three days referred with a proper name (Kalends, Nones and Ides). For the time, Calendarium calculates the sunrise and sunset based on the current coordinates, but if they are not available use Romes coordinates twenty meters above sea level and Zenith Sun 90° 50
Now added the Roman astronomical agricultural calendar.