Time travel

Sept 2: London, forward 8 hours = noon local time, 4 am in Victoria
Sept 6: Bergen, forward an hour (9 hours ahead) = noon local 3 am in Victoria
Sept 9: Lerwick, back an hour (8 hours ahead) = noon local time, 4 am in Victoria
Sept 12: Akureyri, back an hour (7 hours ahead) = noon local time, 5 am in Victoria
Sept 15: Reykjavik to  ....  Reykjavik,  back an hour (6 hours ahead) = noon local time, 6 am in Victoria
Sept 17: Somewhere in the Atlantic Ocean,  back another hour  (5 hours ahead ) = noon local time, 7 am in Victoria
Sept 18: Somewhere in the Atlantic Ocean again,  back another hour  (4 hours ahead ) = noon local time, 8 am in Victoria
Sept 20:  Boston,  back another hour (3 hours ahead) = Eastern Daylight Time!!
Sept 25:  Saint John, forward an hour  (4 hours ahead) = noon local time, 8 am in Victoria
Sept 30: Somewhere in the St Lawrence, back another hour (3 hours ahead) = Eastern Daylight Time again!!
Oct 8: Manitoba, back  another hour  (2 hours ahead ) = noon local time, 10 am in Victoria
Oct 9: Alberta, back  another hour  (1 hour ahead ) = noon local time, 11 am in Victoria
Oct 9: BC, back another hour = Pacific Daylight Time  (yay!)