I have attached you sample data table and have added 2 columns. The formula I used for the first column is:
Informat( Substr( :Column 1, 1, 10 ), "Y/m/d" )
It was a pretty straight forward conversion, because the substringed data matched an existing Informat().
The second column formula is:
Informat( Substr( :Column 1, 12, 2 ) || ":0", "hr:m" )
The format required needs to have minutes along with the hour, so I just had to add it to the string returned from the Substr() function
I hope this helps you with your journey into using JMP
Jim