1881, John Harvey Kellogg, Plain Facts for Old and Young: Among most modern nations, the civil laws fixing the earliest date of marriage seem to have been made without any reference to physiology, or with the mistaken notion that puberty and nubility are identical.
Hours. Verizon defines the times that fit within the unlimited nights and weekends plan. Unlimited night calling time begins at 9:01 p.m. and ends at 5:59 the next morning. These hours apply weekdays, Monday through Friday.
Zeitgeber time (ZT): A standardized 24-hour notation of the phase in an entrained circadian cycle in which ZT 0 indicates the beginning of day, or the light phase, and ZT 12 is the beginning of night, or the dark phase. For comparison, see circadian time. Join us in Phoenix, Atlanta, San Diego, and Amelia Island.