What is the significance of January 1, 1601?
问题 This structure is a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601. Reference: http://msdn.microsoft.com/en-us/library/aa915351 Why it is set "since 1601"? Why not unix time 1970 or even 2000? What can I do with the compatibility of so distant in time dates? Answering to myself. The ANSI Date defines January 1, 1601 as day 1, and is used as the origin of COBOL integer dates. This epoch is the beginning of the previous 400-year cycle of leap years in the