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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11
votes
4answers
30k views

Travel time in Medieval times

I have a character who lives on the outskirts of a large empire and he has to travel to the capital. By horseback, how far could my character realistically travel in a day? How far could he travel in ...
5
votes
3answers
244 views

Experiencing time more slowly

I am toying with the idea of a character who handles time differently. For them time is slower. To be clear: They do not perceive time as going slower in the way that one would while waiting for ...
13
votes
3answers
1k views

How long is the subjective experience of eternity? [closed]

I watched a movie that was inspired by the classic myth of Sisyphus. It’s a well-worn story element to have a character be cursed to repeat a task or relatively brief passage of events for eternity. ...
5
votes
4answers
304 views

How do I explain checkpoints without magic?

Checkpoints have been a staple of video games for decades and are almost as old as video games themselves, but how? These little tiny features have made a huge difference in the way we play games, ...
6
votes
3answers
270 views

Is an interstellar clock orbitally possible?

A Kardashev Type III civilisation has need of a long-scale timepiece, and as such has arranged a series of planets around a black hole such that their orbital periods can be used to tell the time in ...
2
votes
2answers
143 views

Person that is desynchronised from others in regard to experiencing present [closed]

In the frame of a 'block universe' we all perceive the present at the same time. Imagine astronaut that goes to deep space and when he comes back he starts experiencing things ahead of time. EDIT: As ...
2
votes
4answers
329 views

Is ignorance of time dilation effects justified?

When I was younger I learned about time dilation and since my story was (and is) set post-planet I thought many hours about how to handle it. I came to the conclusion that I could just drop it and ...
4
votes
4answers
722 views

How much time would it take for an immortal being to get bored? [closed]

This man has a curse: not even being completely demolecularized would help, he just will get back togheter like nothing happened. He has acces to tons of resources, so he can do everything he wants ...
7
votes
2answers
173 views

Progressive level of abandonment of a place

My story is set in an abandoned medieval castle. I am having a hard time describing the effects of time on the place. What would happen if a place gets abandoned and neglected across the years? What ...
-1
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2answers
235 views

How survivors should measure time on tidal locked planet?

Setting: Earth-like planet orbitting red dwarf. Survivors from the Earth. (Only one planet, not post-planet civilization like in question: How Would a Post-Planetary Civilization Measure Time? ) ...
1
vote
1answer
211 views

Electrons have been frozen in time, now what?

Related to this question and this one also as both mention stopping time, I'd like to be a little more direct with my question, and ask about a smaller subset of time and change related to Time Stops. ...
13
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7answers
7k views

Will a person be able to see when he stops time? [duplicate]

Suppose there is a person who owns a device which can stop and resume time. When the person stops the time, will he be able to see the things around him? I imagine not, because stopping time will stop ...
70
votes
25answers
25k views

How can you possibly stop/kill a person who has the ability to stop time? [closed]

Let's say we have a character (let's call him Nelson), who can stop time and let's pretend like it's possible and comfortable for him to do it. He can see and move in stopped time, can apply force to ...
3
votes
3answers
195 views

What would be advantage/disadvantage of a different concept of time of day?

I've always entertained the thought that our time system (24 hours, sometimes regarded as 2 periods of 12 hours, 60 minutes and seconds etc.) is an inefficient and unnatural concept. Besides the ...
7
votes
5answers
193 views

Different ways geographically distant cultures might measure time?

Okay so in my world, I have two pre-industrial societies that live thousands of miles apart from each other on their ringworld. One lives in a desert climate similar to India or the Middle East while ...
20
votes
13answers
3k views

Where should we store our brains?

I'm creating a story in which (almost) all of the world's now 10 billion people have voluntarily become "brains in jars." Considering that almost the entire population has chosen to do so, leaving ...
4
votes
2answers
198 views

Food requirements for Localised Temporal Fields, at different time velocities?

I have a middle-aged character who is stupidly messing around with some very dangerous quantumly-entangled unobtanium. He accidently creates a localised time reversal field. After the field collapses ...
3
votes
4answers
314 views

What would a solar empire's calendar look like?

Background information Let's say that humanity somehow has colonized almost every celestial body in the solar system (with the exception of the gas giants, Venus and Mercury): we mine moons and ...
3
votes
4answers
346 views

How long would it take to complete the real life International Pokedex

With Pokemon GO-ing viral, it only makes sense to write a question about the iconic game. Let's say that somehow, scientists decided that the Professor Oak style of research (giving a kid a pokedex ...
3
votes
4answers
254 views

The Civilization of the Longest Now: How to notate time over immense time scales?

Imagine a civilization which has surmounted almost all of the limitations of biology and the universe. They have become truly immortal, put behind them all their petty differences, and dug down into ...
7
votes
7answers
300 views

How to standardize and communicate one's age across interstellar colonies?

The concept of "age" on Earth is based on the number of revolutions the planet has completed since one's birth. In a setting where interstellar colonies exists, of even in a setting where multiple ...
0
votes
3answers
150 views

Time on fictional planet

I already have the year being 2.2 earth years(800 earth days to be exact) on Kepler Bb due to transitional phases(of which there are 4 and each one lasts 80 earth days) and the main seasons being 1/3 ...
2
votes
4answers
244 views

Is it possible to create a consistent timer using only gravity?

I've got a cave civilisation who have never seen the Sun, and don't have much of a concept of time. I was inspired by a Reddit post from someone with a similar situation, and like me, the OP was ...
1
vote
4answers
171 views

How would financial systems change in a universe where time dilation by individuals is feasible? [closed]

I was reading this answer to a recent question about a planet traveling at the speed of light, which contained the lines: Since time is money, this could be exploited for various economic effects. ...
27
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15answers
8k views

Is it worth colonizing a planet that travels near the speed of light?

There is a planet that is orbiting around not a single star, but the core of a galaxy. It is independent of the other solar systems in the galaxy, but is affected by the center of mass of the core. It ...
10
votes
1answer
865 views

How would stopped time look from the outside?

If there were a sphere or a cube where time is stopped, how would someone passing by perceive that? I have something in mind that stops everything, including air and light, not only solid matter. My ...
10
votes
9answers
1k views

Most scientifically accurate way for time travel

I'm looking to use time travel as a big element in my world. I want there to be a somewhat reasonable explanation for it though, so it doesn't turn into some magical wooble-booglly tech stuff. (...
3
votes
1answer
234 views

Tidal locking timescale assumption

Is it safe to assume that any two binary planets of 0.5 to 1.5 Earth masses having mass ratios of 1:1 up to 2:1 would always have become tidally locked to one another long before any life could ...
1
vote
0answers
116 views

What might 3-dimensional time look like?(from a hypothetical standpoint?) [duplicate]

I recently started a conworld, and I want it to have a 6-dimensional universe with 3 time dimensions and 3 space dimensions. I think the first dimension would be our standard time. The second might be ...
4
votes
4answers
836 views

How to know if one-way travel into the past results in a new timeline?

Setting: Modern day Earth, with technology no more advanced that what's foreseeable within the next 30 years. Premise: An impending disaster which will completely obliterate the entire solar system ...
5
votes
1answer
144 views

Would it be possible for there to be a life form that has a time symmetric life cycle?

All known life forms have life cycles that are not time symmetric as they look different when time is reversed. I was wondering if there could be a life form that would have a life cycle that would ...
8
votes
6answers
579 views

Time Resistance

One of my characters has the ability to manipulate time, and thus I've found that if used properly, that ability isn't presented with much in the way of obstacles. Once time has stopped, unless they ...
12
votes
4answers
2k views

How to make this base-10 metric time concept work

I am trying to make a fake metric-time app to prank some friends when we take a trip to Canada soon and would like to know how I could make this work conceptually. I already know that the time is ...
1
vote
2answers
75 views

Effects of latitudinal time zones with multi-step DST

In OTL, longitudinal time zones (each ideally 15° wide, ±7½° around each of 24 main meridians) were introduced in the late 19th century when time tables for trains, for instance, began to require more ...
2
votes
3answers
97 views

Effects of local solar time with flexible hours

In OTL, time zones were introduced in the late 19th century when time tables for long-distance trains, for instance, began to require more precision and standardization across wider areas than a ...
6
votes
4answers
394 views

What naming conventions could we use for a person based on time of origin?

So typically in a three - dimensional setting we tend to refer to people by their geographical point of origin (eg, Americans, Asians, even Jovians if we want to leave Earth). My question is, what ...
2
votes
2answers
138 views

Life imitating art - slow-motion

One well-known and oft-cited trope is that of life imitating art. Hollywood (and other movie studios) have provided countless films in which slow motion is used to emphasize or provide clarity to a ...
15
votes
6answers
2k views

Asynchronous society

Our world has easily observed year, month and day cycles. They and their multiples, such as decades or weeks, and fractions, such as seasons, hours, minutes, and seconds are easily available and used ...
2
votes
3answers
457 views

Time system for a Ring-World

What sort of time/date system would suit a Dyson Ring, also known as a Ring-World, an artificial habitat megastructure shaped like a circular band, located in the habitable zone encircling a star, in ...
37
votes
16answers
12k views

What would an Earth with no timezones be like?

If we abolished the system of time zones, and everywhere followed UTC (or another arbitrary timezone), what would the possible advantages or disadvantages of this system be? If you can think of any ...
37
votes
20answers
8k views

How would people tell time if it was always day?

So, if I have a civilization that lives in a hollow planet, with a sun in the middle. How would they tell time? The sun always shines, and it is a Constant Spring/summertime weather. They have animals ...
2
votes
2answers
344 views

If Santa can time travel, why does he need elves to make toys?

Santa is a time traveller. Notice that when going back in time, he steals the presents which he delivers going forward. So, what do the elves do?
10
votes
4answers
929 views

Santa is a time traveller. How does he not violate causality?

People wonder how Santa can deliver all his presents in one night. It's, simple: he's a master time traveller. (This post will form the base of a long series of questions). Here's how Santa's usual ...
0
votes
1answer
103 views

Could a universe with something like special relativity based on position instead of velocity be logically consistent?

In a parallel universe if two objects occupy different positions in space then in the reference frame of each object the other has length contraction and time dilation. If the two objects are very ...
6
votes
3answers
206 views

The time locked vault will open in accordance with the prophecy

I have just invented the Macguffin. It is ultimate wondrous power for anyone who is wise enough to wield it... But humanity isn't ready for it yet. I need to put it out of reach for a significant ...
53
votes
25answers
10k views

What all stops working when I pause time?

Somewhat, not really related. In my young adult story, the main character has a mechanism that allows her to pause time, and do things while everything is frozen. I have no problem 'magic'ing the ...
16
votes
12answers
2k views

Every now and again God puts us on pause. Can we detect this?

Imagine that God has many universes to deal with or just needs a break sometimes. He has a pause control. What plausible mechanism does God use to perform the pause without breaking the laws of ...
1
vote
9answers
476 views

Speeding up technological development using a time machine [closed]

Imagine that we have invented time machine. Now we can go back in time okay? Now if we go back in time and teach our ancestors thing which were discovered or invented thousands of year later after ...
-1
votes
6answers
1k views

Is 1000 years long enough for a major evolution to happen? [duplicate]

Writing a story where people have evolved to harness their brains to have control over different elements depending on personality. Is 1000 years a long enough time for this to plausibly happen? Does ...
195
votes
28answers
30k views

I'm stranded on an alien planet. How do I measure an earth year without a clock?

I just got shoved through a stargate onto a planet I don't know. I was told the gate would open again in exactly one Earth year. I wasn't carrying anything; I don't even have my watch. How do I know ...