'Gets a DateTime object for the current century.
:param before_now: include days in current century before today
:param after_now: include days in current century after today
:param tzinfo: timezone, instance of datetime.tzinfo subclass
:example DateTime(\'2012-04-04 11:02:02\')
:return DateTime'

@classmethod
def date_time_this_century(cls, before_now=True, after_now=False, tzinfo=None):

    now = datetime.now(tzinfo)
    this_century_start = datetime((now.year - (now.year % 100)), 1, 1, tzinfo=tzinfo)
    next_century_start = datetime((this_century_start.year + 100), 1, 1, tzinfo=tzinfo)
    if (before_now and after_now):
        return cls.date_time_between_dates(this_century_start, next_century_start, tzinfo)
    elif ((not before_now) and after_now):
        return cls.date_time_between_dates(now, next_century_start, tzinfo)
    elif ((not after_now) and before_now):
        return cls.date_time_between_dates(this_century_start, now, tzinfo)
    else:
        return now
