An introduction to time, timekeeping, and the uses of time information, especially in the scientific and technical areas, are offered in this book for laymen. Historical and philosophical aspects of time and timekeeping are included. The scientific thought on time has been simplified. Contents include: the nature of time, time and frequency, early man-made clocks, quality factor, modern clocks (quartz, atomic, etc.) modern watches (electronic, quartz-crystal, etc.), time scales, the correct time, time signals, standard time, applications of time, time and mathematics, time and physics, time and astronomy, time and automation, time as information, and the future of time. (MP)