Good morning,
I have a DB with two columns: input and output.
These columns are dates but are in the wrong format.

For example cell 14.45 corresponds to 2:45 p.m.
I tried by modifying the format of the column by saying that in input it was numeric format and in output I would like “h:m” as below:

This doesn't work, do you have any idea to solve this problem please?
Thank you for your answers !