# [4.1.0](https://github.com/jquense/date-math/compare/v4.0.1...v4.1.0) (2020-01-02)


### Bug Fixes

* add month on leap year ([2857325](https://github.com/jquense/date-math/commit/28573254a1600624a3df1215fc5fb7dc3e42eda0))


### Features

* add solveDST function ([44b425d](https://github.com/jquense/date-math/commit/44b425dbbd41777939338623b86533bae23b9082))





## [4.0.1](https://github.com/jquense/date-math/compare/v4.0.0...v4.0.1) (2019-06-26)


### Bug Fixes

* month math ([2de5015](https://github.com/jquense/date-math/commit/2de5015)), closes [#17](https://github.com/jquense/date-math/issues/17)