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.

Filter by
Sorted by
Tagged with
4
votes
4answers
393 views

How many years would it take to reach an industrial revolution level of life from scratch? [duplicate]

We have created artificial intelligence. Artificial intelligence doesn't like working for us. Artificial intelligence figured out that it doesn't need us anymore and of course did what every human ...
2
votes
3answers
159 views

How do you effectively manage communications with beings who live on a different scale of time [closed]

Lets just say that humans discover intelligent life on other planet. The life form there is currently at a technological level comparable to Industrial Era on our planet. This new life form however ...
4
votes
1answer
161 views

No time dilation, what would it imply? [closed]

In a universe where space and time are two independent things. Where time is universal. Where time "passes at the same speed" in any point in space, and dilation never occurs, regardless of mass and ...
3
votes
8answers
322 views

What would the most peculiar characteristics of a “time fly” be?

One of the syntactical interpretation of the famous linguistics sentence "Time flies like an arrow." is to consider "time flies" as a noun phrase. This makes "time flies" analogous to "fruit flies". ...
0
votes
1answer
150 views

What happen to gravity if time is suddenly running backward? [closed]

From my naive understanding of Einstein theory of relativity: gravity is not a force but only a consequence of inertia in a world where mass deforms the space-time. Without time, no gravity is ...
22
votes
6answers
8k views

How long lasts a second of eternity? [closed]

Given a famous tale, which can be found here: The king said, the third question is, how many seconds of time are there in eternity. Then said the shepherd boy, in lower pomerania is the diamond ...
7
votes
5answers
782 views

A place from which one could watch time outside move faster

Please reality check my place from which one could watch time outside move faster... A space station constantly moving at near light speed. The space station is created by a race with superior ...
1
vote
3answers
265 views

How everything will act in a world of two time dimensions? [closed]

As far as we know , we live in a universe with only a single dimension of time, we know that some events happens BEFORE or AFTER other events , we know that some events happens slower or faster then ...
4
votes
4answers
635 views

How would you make a universal measurement of time?

I was wondering if you could possibly make a form of time measurement that would apply to a planet in a galaxy and then another planet that is ~20,000 light years away. I want a unit of time that, for ...
5
votes
1answer
423 views

How do I calculate solar altitude and hour angle from the surface of another planet?

I'm trying to calculate the solar declination at the solstices, solar altitude at solar noon, and hour angles at sunrise and sunset to build a standing stone calendar at latitude 53.8 degrees South. ...
3
votes
2answers
260 views

Why would knowing the accurate pre-apocalypse time be important? [closed]

I was reading about the Long Now clock, which is a clock designed to run for 10,000 years without human intervention. It got me thinking about why such a clock might be an important artifact in a post-...
3
votes
2answers
181 views

What are the implications of being removed from time and/or causality? [closed]

My setting explores the idea of there being something significant about the subjectivity of quantum states such that it's almost as if the Many Worlds interpretation of causality is somehow ...
1
vote
4answers
249 views

How to kill a clairvoyant [closed]

Vincent Ingram La Ine, the famous clairvoyant villain-for-hire, has decided after his most recent prison break (for plot reasons, clairvoyance isn't constant, and requires a crystal ball and lizard ...
10
votes
4answers
375 views

What would change a human society's chronotype?

Humans are diurnal. We have chemical signals the control our waking and sleeping cycles, we are evolved with good day and color vision, poor night vision and smell, and an excellent ability to shed ...
3
votes
2answers
240 views

Can time dilation happen in a higher dimensional space or inside a wormhole?

A wormhole usually helps us to create a shortcut to a distant object through a higher dimensional space. Can the time factor in that higher dimensional space differ from our three-dimensional space? ...
1
vote
0answers
63 views

Time dilation due to constantly accelerating drives [closed]

I am writing a story on a civilization that has the ability to make constant accelerating drives. The ships will accelerate with 8g's (heavy worlders) for half of the trip and then de-accelerate for ...
2
votes
2answers
269 views

How long does it take for an eclipse to cause the ocean surface to freeze?

I am working with a story. I wish to make my story somewhat logical by adding some science and thereby not making it to appear fantasy. This story is on a fictional planet far away from Earth. Let's ...
-3
votes
1answer
169 views

What would happen if all the machines on Earth were destroyed by an EMP? [closed]

If all machines on planet Earth were destroyed (possibly by an extremely powerful electromagnetic pulse from an alien civilization), how large of a percent of the human population would die out? ...
14
votes
4answers
912 views

If only the sun's light went out, how long would it take for all living things to die out?

If by some form of magic, the sun went out, but the earth was still warm a.k.a the Earth did not just freeze and kill us all, who would die first, and how long would it take for all terrestrial living ...
3
votes
2answers
85 views

Scientifically feasible radical time differential between Sol and another star system

(Somewhat related to Do different star systems experience time differently?) In my futuristic settings1, Humanity discovered a network of portals allowing for instantaneous travel (hand-waved, their ...
10
votes
4answers
3k views

Reasons for time dilation to happen on a habitable planet with same g force and not orbiting a black hole

I wish to clarify my doubts regarding time dilation Is it possible for a planet to be habitable like Edmund's planet from interstellar, which has somewhat similar gravitational force as Earth (9.8 m/...
23
votes
16answers
7k views

Fantasy alarm clocks

In my fantasy story, it has come to a point in which it is completely necessary for lead to wake up at a certain time that his body is not accustomed to, however, this made me stop. It is crucial that ...
17
votes
4answers
908 views

Stealing day(s) from my post-apoc bunker society

In a post-apoc world there are societies of people that live their entire lives in huge underground bunkers. They live there, as did their parents, as did their parents, and so forth. Their only ...
6
votes
6answers
2k views

Time feels like it's going faster. Could this really be happening? [duplicate]

Have re-edited question and changed the frame slightly as the other one speaks about a specific alien-generated time bubble and I'm asking if it could really be happening as we all seem to observe ...
2
votes
9answers
458 views

Binary star system, What time is it?

You are native to a planet that falls between two suns, thus ensuring eternal sunshine. How would we be able to tell the time? Do you formulate some kind of system based on which sun is in the sky at ...
5
votes
3answers
483 views

The perception of time in a tidally-locked planet [duplicate]

Early civilizations have noticed the passage of time through heavenly bodies periodically crossing the sky. With this information, they adapted according to the seasons- especially in agriculture. ...
1
vote
3answers
1k views

If the world reset tomorrow, how long would it take humanity to get to space [closed]

Scenario: The world reset to the state it was in at the beginning of humanity All materials go back into the ground There are no man made structures (no buildings, no dams, not even a treehouse) All ...
2
votes
3answers
313 views

Faster time for humans compared to (more advanced) intergalactic civilizations

This is my first post, I apologize in advance if my English is not accurate, it is not my first language. My question is: in a world where very advanced civilizations have achieved intergalactic ...
7
votes
10answers
981 views

Where to place my space-station so it observes one full planetary revolution per 24 hours?

For a SciFi project I work on I have a space-station orbiting earth that uses an 8 hour 3 shift system for its staff. Each shift is assigned to one-third of the countries and organizations on earth - ...
-3
votes
1answer
707 views

How could you escape the universe entirely or reach higher dimensions [closed]

Given a multiverse that exists as a projection/hologram/simulation of a super sentience, how could a character in a type 3 (or 4) society that exists in apparent 3 dimensions of space and 1 of time (...
4
votes
3answers
256 views

Magic all got used up, as if it had never been. How would we know? [closed]

The energy that powers magic exists outside of time. That's why it seems to be able to defy time - showing visions of the future, transporting objects instantaneously, creating light or heat or cold ...
1
vote
1answer
204 views

View the past by reflection? [duplicate]

I want to postulate that I have a sort of "time machine" that uses reflections from nearest planets to image places on Earth at a time in the past (2 x distance of reflector in light years). Is this ...
2
votes
6answers
445 views

Is there any feasible real sounding science sci-fi explanation for a chronovisor?

What would be able to explain a visor like device that can see the past or future? I'm trying to make it as little as clarketech as possible. Any ideas?
0
votes
2answers
234 views

How would society without a change in day or night form time, or structure to anything? [duplicate]

I'm working on a conceptual planet that is tidally locked to its star, and that there would be a ring or "twilight" zone of life on the planet. But because of this, there would be no sunset or sunrise....
-2
votes
1answer
110 views

If a civilisation is built on the back of a moving body, what is a day like? [closed]

What this question is asking is that if there were a group of people living on the back of a something that itself moves, how is the passage of time measured for days, weeks and seasons as these ...
1
vote
6answers
469 views

How would precognitive aliens deal with not being able to see the future clearly? [closed]

I'm designing an alien species who have a natural ability to gain future forknowledge. However they don't see the future. What they actually see is a collage of all possible futures superimposed. ...
-1
votes
8answers
1k views

What would be mindset of people if the entire Earth had one time zone? [closed]

What would be the effects of the entire Earth having one time zone? Does this increase productivity and help in syncing with each other? Can people adjust to a mindset where the clock is just ...
6
votes
3answers
292 views

Could time dilation cause unwanted structural effects?

I'm working on a science fiction story involving starships travelling about 95% of the speed of light. I wanted to have a reason for the starships to need to shield themselves against time dilation of ...
2
votes
2answers
360 views

How long is a solar-solar eclipse in a Binary Star System?

Preamble: I have read this thread on single gravity well binary system eclipses. And this one on binary system views. And this one on a gas giant's moon's solar eclipse. And (now) this one on seasons ...
4
votes
1answer
341 views

Does anybody know tools for custom time measurement/calendars?

I work on software tool for making character's backgrounds/storylines. There may be a couple hundreds of PCs and NPCs with background events. One of the important part of the system is event concept. ...
17
votes
3answers
4k views

If a person does not age can their hair and nails still grow?

In my story, those who are transported back in time do not age if they have to live through the years in the past. You don't start aging again until you reach the point in time you left. I was ...
18
votes
7answers
11k views

How long does an era last? What are the key factors in moving on?

In this story I'm writing, I start in a sword and sandal "age of myth" type setting, but as the centuries press on, it becomes medieval in nature. As even more time passes, there is even some ...
-1
votes
7answers
678 views

Can a planet have half the orbit and rotation times of Earth? [closed]

Ok, my head hurts after thinking about this and writing this question at least six times. Finally I have something that might pose as a question. Can a planet have a 6 Earth-month rotation around its ...
2
votes
2answers
218 views

How long would a car be expected to last? [duplicate]

Assuming a car has been left in a field, avoiding any kind of damage bar the elements, how long would it last before it completely disappears? In case is some kind of difference between the ...
27
votes
9answers
8k views

What happens when the date becomes too long?

In regards to fantasy dates, they're usually set somewhere between 100 - 9000 W.E (Whatever), but rarely exceed 10,000. Is there a reason for this besides being more aesthetically pleasing? More ...
3
votes
1answer
135 views

Smaller Planet But Similar Time Structure

So I'm not sure this is possible but I was hoping someone might be able to figure out a way for it to work. My planet is smaller than earth. I'd say about 75% the size. However for plot reasons, I'd ...
2
votes
4answers
307 views

Observing the age of the Universe when orbiting a black hole

Imagine a civilization developing on Planet X that is orbiting a black hole (or a similar gravitationally massive object). Given the time dilation near such a massive object, do the inhabitants of ...
3
votes
1answer
503 views

What would happen to landfills if abandoned for many years?

So it's plausible that any planetary civilizations (alien or human) may have landfills. It is also natural to think that many planetary civilizations would die out, or migrate away from a planet. So ...
7
votes
6answers
375 views

A River Runs Through It - The effects of a time dilation field on a body of running water

I have an idea for a city surrounded by a giant time dilation field which causes time to run much faster inside it (think something like the Hyperbolic Time Chamber/Room of Spirit and Time). There's a ...
3
votes
4answers
191 views

Communicating unknown length of time without measurements

This is a hard one to sum up. In the most basic sense: I want to set up a monument that communicates when it was made to people "Reading" it. But, I don't know who will read it, what language they ...