May 26, 2018

Perform common time and date operations with additional GPS operations

The purpose of this library was to replace our dependence on Unix epoch time, which, being limited to a range of about 1970 to 2030, is inadequate for our purposes we have data as old as 1870. This date library effectively handles dates from A.D. 1000 to infinity, and would probably work all the way back to 0 ignoring, of course, the switch-over to the Gregorian calendar. The useful features of Unix epoch time ease of date difference calculation and date comparison, strict ordering are preserved, and elements such as human-legibility are added. The library handles fractional seconds and some date/time manipulations used for the Global Positioning Satellite system.

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