In his will, Charlie bequeaths his estate to his "oldest living grandchild." Upon Charlie's death, his two oldest living grandchildren are Bob and Alice. Bob was born in Vancouver, British Columbia on March 7th at 11 p.m. local time. Alice was born the next day, March 8th, in Halifax, Nova Scotia at 1 a.m. local time, which is 2 hours before Bob was born, due to the time zone difference. Who inherits Charlie's estate?
I'm interested in the answer for Canada, but other countries would also be of interest.