What time will it be in London England if is 4 P.M. Calgary?

To determine the time in London, England when it is 4 P.M. in Calgary, we need to account for the time difference between the two cities. Calgary is located in the Mountain Time Zone (MT), while London is in the Greenwich Mean Time (GMT) zone.

The time difference between GMT and MT is 7 hours during standard time and 6 hours during daylight saving time (DST). Since the time difference is 7 hours when both locations are observing standard time, we can calculate the time in London as follows:

4 P.M. MT - 7 hours (time difference) = 9 A.M. GMT

Therefore, when it is 4 P.M. in Calgary, it will be 9 A.M. the next day in London, England.