Asking my friendly FT experts for help here on SDC and Standby to get extra time in LAX/LA.

Flying SFO-LAX-BOS. SFO-LAX, 7:00-8:36PM to the 10:30PM LAX-BOS flight in the near future. What are my options for getting a longer time in LAX to catch up with friend same day or day before? There are 4 flights same day that leave earlier and 3 flights the earlier calendar day that depart after that 7:00PM flight 24 hours before.

SDC: Appears I cannot create an illegal layover of over 4 hours before my trip starts which only gives me a 5:30PM flight to choose from, but depends on the rules of the ticket which I cannot access.
Standby: This appears more flexible as there are not illegal layover rules. The issue appears leaving the calendar day before flight even though 24 hours in advance should cover it.

Thanks in advance for helping me out.