def datetime(y: int, mm: int, dd: int, h: int=0, m: int=0, s: int=0) ->dict:
    """Creates the dictionary describing datetime with given parameters.

    :param y: Year
    :param mm: Month
    :param dd: Day
    :param h: Hour
    :param m: Minute
    :param s: Second
    :return: {Datetime: str}
    """
    dt = (f'{str(y)}/{str(mm).zfill(2)}/{str(dd).zfill(2)}' +
        f'T{str(h).zfill(2)}:{str(m).zfill(2)}:{str(s).zfill(2)}')
    return {'Datetime': dt}
