# TI-Basic, <s>22</s> 21 bytes
```
getDate
log(log(dayOfWk(Ans(1),Ans(2),Ans(3

```
-1 byte by using [MarcMush][1]'s method but replacing `ln(` with `log(`.

Only works on TI-84+/SE. Assumes that the date is set correctly before the program is run. There is a newline at the end.


  [1]: https://codegolf.stackexchange.com/users/98541/marcmush