Questions tagged [time]

For questions about the standard passage of time on objects/people/civilisations etc. Also consider the [time-keeping], [spacetime-dimensions], [alternate-history], [universe], [time-travel], or [time-manipulation] tags.

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3answers
605 views

How would our society react to a major time-jump?

Our omniscient God has decided to intervene for (arguably, if you ask some religious people) the first time at least in a very long time. For matters unknown to us, He has frozen all time on Earth, ...
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3answers
943 views

What difficulties would there be for society if people could manipulate time?

There is now a device which one can use to store time. It is small and inconspicuous, but takes some setting up to use (explained more later). Essentially, it will temporarily remove a region of space ...
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6answers
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Time no longer passes except near intelligent creatures, how does the world continue?

Time stops nearly everywhere, time only continues in a area around creatures of a certain intelligence. The worlds population is suddenly thrown into darkness as time ceases throughout the universe ...
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2answers
922 views

What traits should we expect from religion in the presence of time loops

Last month Mobius asked a question about a world where time can flow both forward and backward. I suggested a particular solution to the problem he was looking at, and I would like to open up a ...
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5answers
693 views

What should I fear/consider if someone asked me today to put me on hibernation and set the time to wake me up 2000 years from now? [closed]

The idea sounds very acceptable to me. Assuming that I'll be n a secure place and the machine would not malfunction and I would wake up at 4015. Anything I should be worried about before saying yes?
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5answers
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Can I significantly shorten the days on a planet that can support human life?

I would like to have a world on which humans can live unaided -- they can breathe, the climate is workable, they can eat the local vegetation, etc -- but on which a complete day is substantially ...
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1answer
265 views

A Perception Of Time

I think my question is best illustrated by this English idiom: A watched pot never boils. Or alternatively, if you've been in school I'm sure you know what I mean. Recess and lunch fly by way too ...
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5answers
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Can you build a relativistic clock?

Is it possible to build a clock that will be immune to relativistic effects on the passage of time? Can a clock exist that will always display the time of the place in which it was set? For instance, ...
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3answers
612 views

The Great Time War

For those not familiar with the TV Show Dr Who, the main protagonist is an alien from the planet Gallifrey. They built your typical highly evolved society which mastered the secrets of the time and in ...
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18answers
6k views

An immortal's measurement of time

A while ago I created a species of immortals that has existed since shortly (astronomically speaking) after the formation of the known universe. I've mostly ignored their society in the meantime as ...
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4answers
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How long is a “day” in intergalactic space?

Imagine a human colony with the concept of an Earth day being transported somehow into the deep, deep space between galaxies. As we know, gravity wells affect the relative passage of time. So, in ...
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5answers
381 views

How do merpeople track time undersea?

Suppose in the early stage of the merpeople civilization, languages are at its infancy and they have just started agriculture. We all know that calender and clock are very important for early farmers ...
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3answers
637 views

Would we count years if we had no seasons? [duplicate]

Suppose a civilisation on a moonless planet that is in an orbit with so little inclination and so circular that there are no noticeable seasons anywhere on the planet. An alemna would be just a ...
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6answers
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How to exploit a groundhog's day loop to do the most good? [closed]

I actually had been thinking of posting a groundhogs day question the same day that Tomorrow is Groundhog Day... For everyone. How does society respond? was first posted ironically, it's a sign! In ...
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7answers
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What is the smallest action required to destroy all of reality? [closed]

Scenario: The most feared evil scientist in the world, Sinister Norman Van Deathtoyou, is on a mission to destroy everything. Humans, Earth, The Universe, even the very fabric of space and time. But, ...
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2answers
802 views

Robbing the world of 1 second

Scenario Set in modern day Antarctica, a group of very talented scientists are working on a highly confidential scientific experiment which would one day allow us to manipulate time literally. They ...
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11answers
11k views

How Would a Post-Planetary Civilization Measure Time?

Our perception of time is steeped in the rhythms of our world, and blended with the most ancient of superstitions, decrees and mathematical conveniences. Thus we have days that track our world's ...
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7answers
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How would a medieval person notice that they've traveled back in time?

How would a Renaissance-era shopkeeper, in a walled and paved city, notice that they've traveled back in time, right when they wake up, or soon after, like after 5 min and looking outside? No dead ...
4
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3answers
378 views

Racing Around the Edge of a Black Hole

I am trying to understand the physics of an interstellar race. Say two ships are racing past a black hole as if it were a corner on a race track. One of the ships takes a hard line and comes very ...
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11answers
427 views

How do you capture this magical critter?

[Critter's descriptions] (D1) appearance closely resembles a cat (D2) no bigger than a dog (D3) toothless (D4) strange claws to climb any surfaces (D5) powerful hind legs can sprint like a cheetah (...
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12answers
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How might one create a room in which time flows faster?

And what would be needed to expand this effect, scaling up to the size of a city, or maybe a country? I've seen this question, and it seems that while one could do it with gravity, the effectiveness ...
2
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1answer
522 views

By how much exactly would the time flow be slown down inside a gravity room?

A super alien warrior goes training inside a gravity room. It's a room with a flat floor, but the surface gravity of the room can be modified at the push of a button. But under general relativity a ...
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13answers
9k views

What Time is it IN SPACE?

So, let's assume you've cobbled together an interplanetary empire without using transportation methods that violate causality or have the power to blow up stars. You may feel pretty proud of yourself, ...
4
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1answer
195 views

Explanation for the creation/existence of a secondary physical space that experiences time differently

In this world I'm building, I need it to be possible to have enclosed spaces/worlds connected to the main one. Ideally the main world would closely resemble ours, with the same laws of energy/physics/...
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27answers
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How to Defeat a Precognitive Warrior? [closed]

My hapless wanderer (let's call her Alice) escaped the Wold forest only to stumble upon a large, featureless and dusty plane, at the center of which lies Castle Morrow, a fort populated by mechanical ...
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2answers
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How would common time-travel affect a language?

In most languages, the linear concept of time has led to similar concepts of past/present/future. Now, suppose that we have a human or human-like society in which time travel is fairly common, and it ...
11
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2answers
414 views

Can a planet's moon rise at the same time every night?

Is it possible for a planet's moon to always rise at the same time of the night? And in this way be used as a timekeeping device? What if there are two moons?
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10answers
887 views

What is the ideal time period for 'forgotten history' novels/stories to take place and still end up with our history?

In novels (SF and FF) that hint at being earlier in Earth's history, such as Lord of the Rings and The Wheel of Time, in which period would such a story need to take place to plausibly and ...
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4answers
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Universe-wide time system

Is there a time system that two spacecraft traveling in different galaxies could share? For example, a spacecraft jumps to an unknown location in the universe, far away. How could they synchronize? ...
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21answers
7k views

A small group recreating modern technology

Suppose a group of people get transported back in time (say 2500 years). Then, in a manner reminiscent of A Connecticut Yankee in King Arthur's Court, they try to re-design modern technology. Assume ...
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8answers
5k views

Do different star systems experience time differently?

Somewhat in relation to this question - What could restrain post-singularity societies from spreading across the Galaxy? I'm assuming not all star systems move at the same velocity in relation to the ...
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21answers
20k views

How might modern humans leave a message for 50,000 years?

I recently played my way through the Mass Effect game series, and one of the ideas I found most intriguing was the emphasis placed on "time capsules" sent from one cycle to the next: not only did ...
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1answer
136 views

Probabilties of the Universe [closed]

Is it plausible that the only way to be at both ends of the Universe at the same time is to have a Mass/Space/energy equivalent of the Universe? In essence is it possible the universe is the only ...
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7answers
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On a planet without seasons, how would people track years?

On a planet without axial tilt and with a roughly circular orbit, there would be no seasons. The climate on the planet would be, as far as I can tell, exactly the same at any time of year, and the ...
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7answers
3k views

How would rogue planet civilization track the passage of time?

If a species were to evolve on a rogue planet, how would they track the passage of time? Without day/night cycles or revolutions around a star, they couldn't use the typical methods that civilizations ...
17
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7answers
2k views

How do date/time systems work for an entire solar system?

The species doesn't originate from the solar system, nor do they occupy a single planet or even have any colonies on the planets. They travel around in space ships throughout the solar system Do they ...