Notwithstanding any other provision of law, it shall be a sufficient defense to a prosecution pursuant to this article, for conducting any trade or business or public selling or offering for sale of any property on Sunday, that the defendant

(1) as the proprietor of such business, uniformly keeps another day of the week as holy time and keeps his place of business closed on the seventh day of the week,

(2) does not himself labor, employ others to labor in, by or with another conduct a trade or publicly sell or offer for sale any property on the day he keeps as holy time,

(3) conducts such labor, trade or business in its normal course on Sunday by himself and members of his immediate family, and

(4) so conducts such trade, public selling or offer to sell any property on Sunday in such manner as not to disturb the religious observances of the community.

The term “day of the week” as used in this section shall mean and include the period of time of not less than twenty-four consecutive hours commencing at or before sundown on one day and terminating at or after sundown on the following day.