Answer:
When winds extent to the point of tropical storm force, hurricane preparedness get tough and complicated. Watches are provided 48 hours before winds increase to 39 to 73 mph, and warnings are released 36 hours before, due to the tropical storm is expected.
If the warning is released 12 hours later than the watch, people should finish their preparations right away and be ready to leave the area. So to know how much time there is, yes, it's necessary to take away the hours from the moment the indicators were given, then the public will have 16 hours left accordingly.
Explanation: