PoseidonDateTime code

User:Neil wrote some Python code that was used to convert CE dates to colonial and convert colonial dates to CE, described on the Colonial calendar page.

The code is available on Gitlab (under an Apache open-source licence), and can be installed via PyPI as

pip install poseidondatetime

Sample usage

This is a sample session of using the PoseidonDateTime class.

• New objects are created with the fromcolonyformat or fromisoformat methods.
• Pretty formatting of dates is with the colonyformat or isoformat methods.
• The attributes p_year. p_day, p_hour, p_minute, and p_second give the components of the Colonial datetime. Similarly, the attributes year. day, hour, minute, and second give the components of the CE datetime.
• You can use timedelta objects changes the time; PoseidonDateTime.p_day_duration is one Poseidon day.

>>> import poseidon_datetime as pdt
>>> import datetime as dt
>>> p_atlantis = pdt.PoseidonDateTime.fromisoformat('2124-08-07')
>>> p_atlantis.colonyformat()
'076.33 18:51:43'
>>> p_atlantis.colonyformat(include_time=True)
'076.33 18:51:43'
>>> p_atlantis.colonyformat(include_time=False)
'076.33'
>>> p_birthday = pdt.PoseidonDateTime.fromcolonyformat('023.99 28:15:00')
>>> p_birthday
PoseidonDateTime(2199, 1, 30, 23, 14, 22)
>>> p_birthday.isoformat()
'2199-01-30T23:14:22'
>>> p_birthday.p_day
23
>>> p_birthday.day
30
>>> p_after_birthday = p_birthday + dt.timedelta(days=1)
>>> p_after_birthday.isoformat()
'2199-01-31T23:14:22'
>>> p_after_birthday.colonyformat()
'024.99 22:14:17'
>>> p_after_birthday = p_birthday + pdt.PoseidonDateTime.p_day_duration
>>> p_after_birthday.colonyformat()
'024.99 28:15:00'
>>> p_after_birthday.isoformat()
'2199-02-01T05:15:05'