Lunar Lore. The dates are given in universal time, which is five hours ahead of eastern time, four hours ahead of eastern daylight time. (Thus March 15 in universal time begins at 7:00 p.m. EST of March 14, and June 10 in universal time begins at 8:00 p.m. EDT of June 9). Sunlight, reaching the Moon from the upper left in this illustration, illuminates our satellite and creates its phases: (1) new Moon, (2) crescent, (3) first quarter, (4) gibbous and (5) full. The Moon then wanes through the sequence in reverse.
AXIOM DESIGN SYSTEMS