Everyone knows that, if he remains awake until midnight, he may make a long distance call at one-fourth the price of the daytime charge. If he calls between 8:30 p. m. and midnight, the fee is one-half the day rate. That is, the American Telephone & Telegraph Co. (the Bell System) considers daytime to range from 4:30 a. m. to 8:30 p. m., evenings from 8:30 p. m. to midnight, and night from midnight to 4:30 a. m. Thus charge for certain calls from Manhattan are:
TO OR FROM
MANHATTAN DAY EVENING...
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