Day got off to the perfect start as a break of 55 helped him to take the opening frame.
However Hawkins, who has been in excellent form throughout the tournament, responded brilliantly with a break of 53 and then back-to-back centuries (114 & 102).
Day got one frame back but Hawkins hit a 129 to open up a 4-2 lead
Once again Day responded but Hawkins came back stronger with his biggest break of the match in a 141 and he moved three clear at 6-3 with a 97 just before the interval.
In the evening session Hawkins won three frames on the trot with breaks of 128 and 85 in the run as he moved to within one of victory.
Read the full article on eurosport.co.uk: Hawkins survives scare to beat Day and lift World Grand Prix title