pip install git+https://github.com/qwlltrm/hmt
hmt 2000.01.01
This will print number of days since January 1 2000. Input supports different formats like
Jan 1 2000 | 2000/1/1 | 2000-01-01 etc.
It works with future dates too, for example:
hmt 2100
Will give number of days from now to January 1 2100
For more details use hmt --help