Time only relevant for GC. GPM is based on position:
http://www.gazzetta.it/Giroditalia/2014/en/08-04-2014/the-most-compelling-giro-d-italia-of-all-time-benefits-from-revised-regulations-80406755022.shtml
"For the first category, points are awarded to the top 8 riders: 32 points (for first...