Hello and welcome @Cayde_Leung!
To make sure I understand, you are looking to setup a field on Table 1 to write out when the code times in Table 2 have checkboxes checked?
One possible way to do what you are looking to do would be to create a third table just for tracking times. I created Table 3 that just tracks hourly times slots:
Then linked each code in Table 2 to a time slot using a linked record field:
With that in place I could then go to Table 1 and create a Lookup field to display the time each code was associated with.
Here is what the Table 1 table looks like with that lookup field in place.
Let me know if that helps- or if not please let me know and we can work out a formula to return what you are looking for. :slightly_smiling_face: