Mutability cannot be enabled thru plugin: https://day.js.org/docs/en/plugin/bad-mutable https://day.js.org/docs/en/plugin/bad-mutable However it is discourage

Mutability cannot be enabled thru plugin: https://day.js.org/docs/en/plugin/bad-mutable https://day.js.org/docs/en/plugin/bad-mutable However it is discouraged as mutable dates often lead to less maintainable, harder to debug, code.