Years ago, I remember seeing one Star Trek episode on TV with Shatner and Nimoy (i.e. Kirk and Spock) in which the "illusion" they considered themselves in was violating immutable laws and principles of nature and physics.

Spock mixed up some combination of chemicals, the fumes of which were supposed to always have a certain effect on the human body, and when he applied them, such fumes did not have the expected nor predicted effect, which Captain Kirk sort of brushed off, but which Spock informed him: "You don't understand, Captain. It had to work, but it did not." Logically, then, he enlightened Kirk that they were operating within an illusion imposed by alien beings controlling the illusion, and therefore neither Kirk nor Spock had to further trust any cause-and-effects relating to any apparent visible objects or entities around them - which of course was a gamble that the aliens would be disappointed and thus consigned to stop the illusion scenario. Which, of course, happened and both Kirk and Spock were returned back on the Enterprise starship.

There have been many movies and TV shows portraying the Hollywood-effects-assisted impossibility of "time travel." I and the wife saw one last night entitled: Intersteller.

It was sort of like going to a casino: if one goes to merely see the flashing lights, hear the ding-a-ling sounds, and enjoy the passive human companionship therein, it is of some value -- just so one does not gamble with the slots or at the blackjack tables and thereby lose more money than one came in with.

Similarly with the "time travel" sci-fi movies and TV shows [ e.g. The Time Tunnel, The Philadelphia Experiment etc.] attempting to suggest that the myth of time-periods alteration can become a reality (by however scientific or whatever other means that is supposedly possible to do).

What is next is an indiscriminate combination of my assured and dependable knowledge but also mixed with my presumptions yet consisting of my best non-deceptive intentions relating to what I assume and presume is history and fact, for your edification. Maybe I should have done more research into those presumptions, but you the reader can sort it all out.

From what I think I know about Einstein, who believed in a non-personal Creator and who got divorced, he promulgated (at least I think he did) a (what I assume) is a General Theory of Relativity, which I think consists of two parts. One part has to do with a reality which is not at all conjecture but which has definitely been proven as fact, which is that energy and matter are interchangeable and described by the equation E=mc squared. The reason I stated that such is "proven" is the fact that astronomers have correctly observed that intense gravitational field like that of our Sun can bend electromagnetically-based starlight. And the nuclear explosions at Hiroshima and Nagasaki clearly show that a small amount of energy in enriched uranium and plutonium was indeed "lost" but actually converted into a huge amount of instantaneous light and heat energy.

However, the other part of relativity, related to apparent differences in the dimensions of length, width, depth, and time from the point of view of different observers in different locations traveling at different speed should be relegated to only what that consists of -- without the presumptions that length/width/depth distance and time duration can be altered by coming into whatever proximity with a so-called "black hole" celestial phenomena (which term is a misnomer because there is not only not void and empty within the so-called "black hole" but instead which so-called "black hole" consists of a physical object intrinsically having such a huge amount of condensed mass that the consequential intense gravitation attraction from it captures even light itself.

So, the fanciful manipulation against actual reality, concocted by those moviemakers using Hollywood's special effects technology, portray one person aging and the person not getting any older. Interesting that most sci-fi time-alteration movies do not have both persons aging at the same time, without one of them dying at the end of the movie to the dismay of the other.

I remember even seeing one movie where the guy (for whatever cause) was aging in reverse (that is, getting younger and younger).

Such time-travel and time-alteration myth actually belongs to the realm of anti-Scripture and anti-reality heresy and apostasy.

Even if time travel were possible, or if living humans with blood constantly flowing in their arteries and veins, could be gradually or even swiftly transported remote mega-distances to planets only somewhat similar to Earth [but in all likelihood, woefully deficient and inadequate in at least one or more vital necessities) as in terms of enough water present, similar-enough atmospheric content, other factors such as distance from the equivalent of our Sun, equivalent size of our Sun, and a few hundred other things, extinction and not survival (not only of the first pioneers themselves but particularly their children) would be inevitable. There are no Cub Foods, Cosco, Sam's Club, nor Walmart food and hardware stores around on far-distance planets for re-supply, and the cost to transport all sorts of life-sustaining necessities from Earth not possible to engineer nor fabricate on the distant planets would be prohibitive, take too long to deliver, not to mention the danger to transport ships out in non-protected space from missile-speed debris unrestricted by atmospheric friction...causing the venture to invariably be - more often than not - tragically lethal and disastrously fatal.

In the Biblical book of Genesis, we have the following religious and historical record available to study and contemplate:

Genesis 1:1 In the beginning [of time duration periods] God created the heavens and Earth.
1:2 The Earth was without form and void, and darkness was upon the face of the deep; and the Spirit of God was moving over the face of the waters.
1:3 And God said, "Let there be light"; and there was light.
1:4 And God saw that the light was good; and God separated the light from the darkness.
1:5 God called the light Day, and the darkness He called Night. And there was evening and there was morning, one day [Heb. yom].
1:6 And God said, "Let there be a sky in the midst of the waters, and let it separate the waters from the waters."
1:7 And God made the sky and separated the waters which were under the sky from the waters which were above the sky. And it was so.
1:8 And God called the sky heaven. And there was evening and there was morning, a second day.
1:9 And God said, "Let the water under the heavens be gathered together into one place, and let the dry land appear." And it was so.
1:10 God called the dry land earth, and the water that was gathered together He called seas. And God saw that it was good.
1:11 And God said, "Let Earth put forth vegetation, plants yielding seed, and fruit trees bearing fruit in which is their seed, each according to its [non-evolved] kind, upon the earth." And it was so.
1:12 The earth brought forth vegetation, plants yielding seed according to their own [non-evolved] kinds, and trees bearing fruit in which is their seed, each according to its kind. And God saw that it was good.
1:13 And there was evening and there was morning, a third day.
1:14 And God said, "Let there be lights in the sky of the heavens to separate the day from the night; and let them be for signs and for seasons and for days and years,
1:15 and let them be lights in the sky of the heavens to give light upon Earth." And it was so.
1:16 And God made the two great lights, the greater light [Sun] to rule the day, and the lesser light [Moon] to rule the night; He made the stars [and nebula, quasars, black holes, supernovas, comets, planets, galaxies] also.
1:17 And God set them in the sky of the heavens to give light upon Earth,
1:18 to rule over the day and over the night, and to separate the light from the darkness. And God saw that it was good.
1:19 And there was evening and there was morning, a fourth day.

The English word "day" in verses 5 and 8 and 13 and 19 is a bonafide translation of the English-lettered Hebrew-Text word "yom" (pronounced: yohm, not yahm). Honest and knowledgeable Hebrew scholars declare that when the word yom is preceded by an ordinal number (e.g. first, second, third, fourth, etc.) and followed by the Hebrew idiomatic expression: "...and there was evening and there was morning....", it always and only means a twenty-four (24) hour beginning-and-ending duration, or period of time - regardless of whether there is a Sun around or not, regardless of the rotation period of whatever planet or whatever one could be located in outer space.

As can be plainly seen in the Scriptural text above, that particular [24-hour] duration, or period of time, is not dependent on anything else in existence. It is set, it is fixed, it is immutable. It does not require that the Sun or moon or stars or whatever else to be present and existing (note that the Sun, Moon, and stars were not created until Day Four of Creation Week, as can clearly be seen in the Biblical text above). The twenty-four hour duration is not dependent even on the location or geography of anyone anywhere in the entire Universe, and not dependent on whether any sentient observers are located wherever or at whatever velocities they are moving.

Joshua 10:13 And the sun stood still, and the moon stayed, until the nation took vengeance on their enemies. Is this not written in the Book of Jashar? The sun stayed in the midst of heaven, and did not hurry to go down for about a whole day.

Job 9:1 Then Job answered:
9:2 "Truly I know that it is so: But how can a person be just before God?
9:3 If one wished to contend with Him, one could not answer Him once in a thousand times.
9:4 He is wise in heart, and mighty in strength; who has hardened himself against Him, and succeeded? --
9:5 Hhe who removes mountains, and they know it not, when He overturns them in His anger;
9:6 who shakes Earth out of its place [Joshua's long day], and its pillars tremble;
9:7 who commands the Sun, and it does not rise [Joshua's long day]; who seals up the stars;
9:8 who alone stretched out the heavens, and trampled the waves of the sea;
9:9 who made the Bear and Orion, the Pleiades and the chambers of the south;
9:10 who does great things beyond understanding, and marvelous things without number.
9:11 Wow, He passes by me, and I see Him not; He moves on, but I do not perceive Him.
9:12 Hey, He snatches away; who can hinder Him? Who will say to Him: 'What are you doing'?"

Job 14:5 Being that his/her days are determined, and the number of his/her months is with you, and you have appointed his/her bounds that he/she cannot pass,
14:6 look away from him/her, and desist, that he/she may enjoy, like a hireling, his/her day.
14:7 For there is hope for a tree, if it be cut down, that it will sprout again, and that its shoots will not cease.
14:8 Though its root grow old in the earth, and its stump die in the ground,
14:9 yet at the scent of water it will bud and put forth branches like a young plant.
14:10 But man (and woman) dies, and is laid low; man/woman breathes his/her last, and where is he/she?
14:11 As waters fail from a lake, and a river wastes away and dries up,
14:12 so man/woman lies down and rises not again; till the heavens are no more [study Second Peter chapter 3] he/she will not awake, or be roused out of his/her sleep.
14:13 Oh that you would hide me in Sheol [the abode of the righteous and the wicked dead], that you would conceal me until your wrath be past, that you would appoint me a set time [a set time!], and remember me!
14:14 If a man/woman die, shall he/she live again? All the days of my service I would wait, till my release should come.
14:15 You would call, and I would answer you; you would long for the work of your hands.
14:16 For then you would number my steps, you would not keep watch over my sin;
14:17 my transgression would be sealed up in a bag, and you would cover over my iniquity.
14:18 But the mountain falls and crumbles away, and the rock is removed from its place;
14:19 the waters wear away the stones; the torrents wash away the soil of Earth; so you destroy the hope of mankind.
14:20 You prevail forever against them, and they pass; you change their countenance, and send them away.

Job 38:31 Can you bind the chains of the Pleiades, or loose the cords of Orion?

Psalm 74:17 You have fixed all the bounds of Earth; you have made summer and winter.
119:89 Forever, LORD, your word is firmly fixed in the heavens.
148:6 And He established them forever; He fixed their bounds which cannot be passed.

Jeremiah 33:20 Thus says the LORD: "If you can break my covenant with the day and my covenant with the night, so that day and night will not come at their appointed time,
33:21 then also my covenant with David my servant may be broken, so that he shall not have a son to reign on his throne, and my covenant with the Levitical priests my ministers.
33:22 As the host of heaven cannot be numbered and the sands of the sea cannot be measured, so I will multiply the descendants of David my servant, and the Levitical priests who minister to me."

Amos 5:8 He who made the Pleiades and Orion, and turns deep darkness into the morning, and darkens the day into night, who calls for the water of the sea, and pours them out upon the surface of Earth: the LORD is His name.

It is illogical that one, using whatever scientific apparatus or mechanisms or technology even in the distant and far-distant future, could alter time periods having transpired, time periods now transpiring, or future time periods in terms of changing durations.

As even some sci-fi TV shows have shown, even if one could go back into the past, with the hope of changing or rectifying whatever for whatever purposes, already-etched-in-stone history...universally recorded everywhere...could not be altered and nothing could ever be changed - even in the slightest way -- being that even the tiniest change or alteration would have a cascading domino effect of revising everything from the slightest event and events to revising the most massive ones...universally.

An obvious impossibility.

In fact, if one could go back far enough in history (which one cannot), one could essentially go back far enough to interfere with and as and against the Sovereign Creator who spoke the Earth and then surrounding celestial bodies into existence for the first time.

Actually, it is frightening and scarey when one looks at a ticking clock or watch or pulsing-ahead second hand of the same, or an constantly-in-seamless-motion electric clock. The march of equally-spaced second and minute hand on the face of the clock or watch does not ever stop, but is perfectly consistent in terms of each duration period being equal...but - again - it always keeps moving.

The march of time never stops. It always keeps moving. One second at a time. All equally spaced. No cessation. No interruptions. No surprise or unexpected delays or jumping ahead or going backwards.

And it never stops. It always keep moving. No power in existence can nor will stop it.....until the Almighty initiates whatever life-form existence in never-ending timeless eternity.

Even the dimensions length, width, and depth have their bounds. They also do not change. They also cannot be altered. They are fixed. Dependable. Keeping us human fearful of the Almighty, and quite sane at the same time.

Luke 16:26 "And besides all this, between us and you a great chasm has been fixed, in order that those who would pass from here to you may not be able, and none may cross from there to us."

Zechariah 14:7 And there shall be continuous day (it is known to the LORD), not day and not night, for at evening time there shall be light.

Revelation 21:27 But nothing unclean shall enter [the New Jerusalem], nor any one who practices abomination or falsehood, but only those who are written in the Lamb's Book of Life.

We human creatures, who depend upon beginning and ending, starting and stopping, of definitive dimensions of length, width, depth, and time, would go insane if such dimensions suddenly and unexpectedly exhibited capricious change or alteration.

Malachi 3:6 "For I the LORD do not change; therefore you, sons of Jacob, are not consumed."

Acts 17:22 So Paul, standing in the middle of the Areopagus, said: "Men of Athens, I perceive that in every way you are very religious.
17:23 For as I passed along, and observed the objects of your worship, I found also an altar with this inscription, 'To an unknown god.' What therefore you worship as unknown, this I proclaim to you:
17:24 The God who made the world and everything in it, being Lord of heaven and earth, does not live in shrines made by humans,
17:25 nor is He served by human hands, as though He needed anything, being that He Himself gives to all humans life and breath and everything.
17:26 And He has made of one blood all nations of humans, and caused them to reside on all the face of Earth, and has determined their appointed times, and the bounds of their habitation,
17:27 that they should seek the Lord, if perhaps they might seek to massage and find Him, though He be not far from every one of us.
17:28 for 'In Him we live and move and have our being'; as even some of your poets have said, 'For we are indeed His offspring.'
17:29 Being then God's offspring, we ought not to think that the Deity is like gold, or silver, or stone, a representation by the art and imagination of man.
17:30 The times of ignorance God overlooked, but now He commands all humans everywhere to repent,
17:31 because He has fixed a Day on which He will judge [those in] the world in righteousness by a Man whom He has appointed, and of this He has given assurance to all humans by raising Him from the dead."
17:32 Now when they heard of the resurrection of the dead, some mocked; but others said, "We will hear you again about this."
17:33 So Paul went out from among them.
17:34 But some men joined him and believed, among them Dionysius the Areopagite and a woman named Damaris and others with them.

Hebrews 13:8 Jesus Christ is the same yesterday and today and forever.

Sometimes ["times?"], the Bible uses the word time as it pertains to a chronologically-specified duration-period marker:

Matthew 2:7 Then Herod summoned the wise men secretly and ascertained from them what time the star appeared;
Matthew 2:16 Then Herod, when he saw that he had been ignored by the wise men, was in a furious rage, and he ordered all the male children in Bethlehem and in all that region who were two years old or under, murdered - according to the time which he had ascertained from the wise men.

Luke 1:23 And when his time of service was ended, he went to his home.

Acts 20:18 And when they came to him, he said to them: "You yourselves know how I lived among you all the time from the first day that I set foot in Asia..."

In other places in Scripture, the word time is used to describe, or in place of, a chronologically-non-specified duration-period marker of the happening of an event, or something occurring:

Matthew 13:30 Let both grow together until the harvest; and at harvest time I will tell the reapers: "Gather the weeds first and bind them in bundles to be burned, but gather the wheat into my barn."

Luke 4:5 And the Devil took Him up, and showed Him all the kingdoms of the world in a moment of time...

Luke 8:27 And as he stepped out on land, there met him a man from the city who had demons; for a long time he had worn no clothes, and he lived not in a house but among the tombs.

Acts 13:11 "And now, hey, the hand of the Lord is upon you, and you shall be blind and unable to see the sun for a time." Immediately mist and darkness fell upon him and he went about seeking people to lead him by the hand.

At other times(!), the word time refers to a perhaps-sequential opportunity, instance, event, or happening:

Luke 23:22 A third time he said to them, "Why, what evil has he done? I have found in him no crime deserving death; I will therefore chastise him and release him."

John 3:4 Nicodemus said to him, "How can a man be born when he is old? Can he enter a second time into his mother's womb and be born?"
9:24 So for the second time they called the man who had been blind, and said to him, "Give God the praise; we know that this man is a sinner."
21:14 This was now the third time that Jesus was revealed to the disciples after He was raised from the dead.
21:16 A second time He said to him, "Simon, son of John, do you love me?" He said to Him, "Yes, Lord; you know that I love you." He said to him, "Tend my sheep."
21:17 He said to him the third time, "Simon, son of John, do you love me?" Peter was grieved because He said to him the third time, "Do you love me?" And he said to Him, "Lord, you know everything; you know that I love you." Jesus said to him, "Feed my sheep.

Acts 7:12 But when Jacob heard that there was grain in Egypt, he sent forth our fathers the first time.
10:15 And The Voice came to him again a second time: "What God has cleansed, you must not call common."
11:9 But The Voice answered a second time from heaven: "What God has cleansed you must not call common."
11:26 and when he had found him, he brought him to Antioch. For a whole year they met with the church, and taught a large company of people; and in Antioch the disciples were for the first time called: 'Christians.'

....or to a non-sequential event or instance or happening:

Acts 27:40 So they cast off the anchors and left them in the sea, at the same time loosening the ropes that tied the rudders; then hoisting the foresail to the wind they made for the beach.