Table 1.

Lighting schematic for the 24-hour and 21-hour days showing onsets and offsets. The bold/italics/underline time on Friday (0600–1630 hours) at 1200 was the time in which all of the behavioral and physiological assays were conducted.

Day	T = 24 Time	Light/Dark	T = 21 Time	Light/Dark
Sunday	0000–0600	Dark	0000–1030	Light
	0600–1800	Light	1030–2100	Dark
	1800–2400	Dark	2100–2400	Light
	0000–0600	Dark	0000–0730	Light
Monday	0600–1800	Light	0730–1800	Dark
	1800–2400	Dark	1800–2400	Light
	0000–0600	Dark	0000–0430	Light
Tuesday	0600–1800	Light	0430–1500	Dark
	1800–2400	Dark	1500–2400	Light
	0000–0600	Dark	0000–0130	Light
	0600–1800	Light	0130–1200	Dark
Wednesday	1800–2400	Dark	1200–2230	Light
			2230–2400	Dark
	0000–0600	Dark	0000–0900	Dark
Thursday	0600–1800	Light	0900–1930	Light
	1800–2400	Dark	1930–2400	Dark
	0000–0600	Dark	0000–0600	Dark
Friday	0600–1800	Light	0600–1630	Light
	1800–2400	Dark	1630–2400	Dark
	0000–0600	Dark	0000–0300	Dark
Saturday	0600–1800	Light	0300–1330	Light
	1800–2400	Dark	1330–2400	Dark