This is known as the "en dash", it is the smaller of the dash marks.
EXAMPLE:
en dash -
in special conditions
A block special file that provides access to a device that transfers in groups of a fixed size. For example, a disk. A character special file that provides access to a device that transfers in increments of a single character; for example, a terminal.
The duration of In Time with You is 1.33 hours.
The duration of What Time Is It There? is 1.93 hours.
The duration of Time Before Time is 2700.0 seconds.
It is exactly 22354786 minutes in duration in the reference frame of the person measuring the passage time (as described by special relativity).
A prolonged form of a verb is simply the base verb combined with an adverb or adverbial phrase that emphasizes the duration or continuation of the action described by the verb. This construction is used to convey that the action was carried out for an extended period of time.
The duration of No Time for Flowers is 1.38 hours.
The duration of Our Time - film - is 1.5 hours.
The duration of The Time to Die is 1.37 hours.
The duration of No Time to Be Young is 1.37 hours.
The duration of Time of the Gypsies is 2.37 hours.