Sorry but there is no automated way to do this.
I have a budget sheet where I do something similar.
I have on row for each month, in this row I have multiple columns with the different bank accounts and exchange rate for Euro / US$. At the last day of each month I do copy paste for this row and copy the row with command + c and paste it with shift + command + v to have the fixed values for this month in this row.
If you are familiar with Apple script you could write a script that is doing exactly this, as soon as you start the script manually.
Problem with formulas like TODAY or NOW is that they will change the next day, therefore it will not work.
Today the formula TODAY will return Jun 16 2022, if you run it tomorrow it will give you Jun 17 2022.
I agree with SG, every hour / day a huge amount of cells will generate a gigantic amount of row / cells within very short time.
Numbers may not her the best tool to record / store gigantic amounts of data.
Ralf