Originally Posted by
Hipplewm
I think he realizes he has to retrieve his bags
What he means is can he check his bags for the flight the next day PRIOR to leaving the airport
Leave Plane
Retrieve baggage
Check baggage for next day flight
Go to hotel
Attend meeting
Show up at airport and get on flight, knowing you checked your bags last night
Read the post again:
"...Would it be possible to check my bags
through to PEK at EWR the evening before..." (bolding mine). I think he meant what he wrote.
OP wants to check his bag
at EWR through to PEK w/o picking it up at SFO. Even in your scenario, a traveller is wanting to check bag at SFO for flight next day while spending night at SFO. Still doesn't work.