How to convert as.character(“%d-%m-%Y hh:mm”) to “%d-%m-%y”

Question

I have these times dd-mm-yyyy hh:mm

               date
1  14-02-2020 21:02
2  30-04-2019 10:46
3  26-01-2019 10:10
4  26-04-2018 13:38
5  13-07-2017