def reformat_timezone_offset(in_date_string):
    """
    Reformats the datetime string to get rid of the colon in the timezone offset
    :param in_date_string: The datetime string    (str)
    :return:               The reformatted string (str)
    """
    out_data = in_date_string
    if ":" == in_date_string[-3:-2]:
        out_data = out_data[:-3] + out_data[-2:]
    return out_data