A descriptive presentation on the interaction of time of day and day of the week with the International Date Line. Monday lasts 48 hours. A Summary of the International Standard Date and Time Notation a good overview of the ISO 8601 notation for dates. Atomic Clock Time Displayed in a variety of useful formats.
Site is a front-end to U.S. government atomic clocks.
A categorized collection of calendar related sites. The history of the western calendar and the clock. Time History of Daylight Saving Time and how we use it to save energy. Daylight Saving Time begins for most of the United States at 2 a.m. on the first Sunday of April. Time reverts to standard time at 2 a.m. on the last Sunday of October.