The Most Complete DateTime Library for C++
This library is a fork from timofurrer's DateTime lib https://github.com/timofurrer/DateTime It also uses CppFormat https://github.com/cppformat/cppformat because I love it :)
The Library is completely revamped, Can calculate date from any date provided. It has all the comparison operators and can add/subtract/timespan from any date to any date.
Full code coverage (43 Tests) (google tests/gtest).
Feel free to do pull requests for code cleaning/Speed improovements,etc. Enjoy.