This is a fascinating topic even though I don't understand it very well, and apparently scientists don't understand it very well either. The two aspects of time that I find interesting are that time seems to be unidirectional, and that time will disappear.
There are many uses of the word "time" in the scriptures, but those uses of the word "time" are in a different context. I searched the online scriptures at lds.org for phrases containing the word "time" in the context of earthly time and only found two scriptures.
Or have angels ceased to appear unto the children of men? Or has he withheld the power of the Holy Ghost from them? Or will he, so long as time shall last, or the earth shall stand, or there shall be one man upon the face thereof to be saved? (Book of Mormon, Moroni 7:36)
That verse tells us that God will not withhold the Holy Ghost from the children of men as long as time shall last, implying that time will come to an end after the Savior has finished his work in redeeming the children of men. Time is a measure of the sequence of events that comprise mortality. Mortality is a temporary existence. People, animals, and plants come into existence and then disappear. Events pertaining to the earth, such as earthquakes and storms, occur and then cease. But in the domain of God all things are eternal. There is no end to eternal things. There is no time in eternity.
Another verse from Revelation declares that time will cease when the Redemption is finished.
And sware by him that liveth for ever and ever, who created heaven, and the things that therein are, and the earth, and the things that therein are, and the sea, and the things which are therein, that there should be time no longer: (Revelation 10:6)
John saw an angel come down from heaven. The angel declared "by him that liveth for ever and ever" that time would cease, referring to the eventual completion of the Lord's work when all things will become eternal.
I think the scriptures give a strong implication that time is unidirectional, always going forward. The scriptures have a strong focus on repentance, that we must change our behavior to become more in harmony with God's will. The context is always that we must repent, and then in the future become more like Christ. There is no implication that as we repent we can go back in time and relive our past.
Some scientists say backwards travel is
impossible because it would violate the principle of causality and, in addition, would require unimaginable amounts of energy. This scientific view of negative time-travel being impossible is in agreement with the scriptural view of time. Other scientists, though, say that backwards travel is theoretically possible but is not practical.
Concerning the disappearance of time, as I pointed out in my previous posts, we believe that when this world is recreated as an immortal world via the Atonement of Jesus Christ, time will cease, for in eternity there is no time. Because some scientists speculate there is no time, there is a form of a parallel between the religious and scientific views, although the religious view of no time pertains to an immortal world and the scientific view of no time pertains to a mortal world.
If science does discover how to travel in time, since from the scientific viewpoint time is a dimension, it will be interesting to see if humans in that distant future are able to travel bidirectionally or just unidirectionally.