How is the time calculated?

Formula for calculating time: end time-start time = elapsed time. Subtract by the hour first, then by the hour. If the number of minutes is not enough, take an hour out of an hour to do 60 points, add the original and subtract it. If the latter is less than the former, the latter should borrow 1 hour, that is, 60 minutes.

Mathematics generally takes 10 as the base, that is, 10 enters one digit, but the hours-minutes-seconds in time take 60 as the base, that is, 60 enters one digit. The end time and start time must be in 24-hour format. The conversion of time relation is as follows: 1 hr (h) = 60min min (m) = 3600 (s).

Physical time calculation

According to the relationship between speed, time and distance:

The letter formula for finding the distance is: S=VT.

The letter formula for finding the speed is: v = s÷ t.

The formula for finding time letters is: t = s÷v

In physics, speed is used to indicate the speed and direction of an object's motion. Velocity is numerically equal to the ratio of the displacement of the object movement to the time taken for the displacement to occur. The unit of speed in the international system of units is meters per second.