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Q&A

Posts tagged time-keeping

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Q&A Could there be a way for a solar system to be very precise, so that the lunar calendar and solar calendar align?

I know that this is a bit silly, but I want to make a calendar for my world and I'm really worried about having to do leap years and such to ensure continuing accuracy. Inaccuracy isn't an option;...

4 answers  ·  posted 1y ago by Bianca_Railway‭  ·  edited 1y ago by tripleee‭

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Q&A Would a civilization living on a planet without a moon still come up with the concept of months?

We divide the year into months of ~30 days because that's roughly the period of the moon, adapted to fit a solar year. However, would a civilization living on a world with no moon but a year of ~3...

6 answers  ·  posted 4y ago by galactic_analyzer‭  ·  last activity 4y ago by galactic_analyzer‭

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Q&A An alien race without the concept of "time"

In my narrative I have these aliens that don't experience time, they don't remember and don't predict events, which makes them completely reactionary. This is supposed to make them alien and diffic...

5 answers  ·  posted 5y ago by System‭  ·  last activity 5y ago by System‭

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Rigorous Science What would it take to make a scientific second equal exactly one traditional second?

A scientist is resetting the clock on his microwave one day as he considers the hopelessness of keeping the time exactly right. Not for the reasons we worry about like power outages and daylight s...

4 answers  ·  posted 5y ago by Nosajimiki - Reinstate Monica‭  ·  last activity 5y ago by Nosajimiki - Reinstate Monica‭

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Q&A Born and raised on a world with longer days and years - would it impact life expectancy

If humans found a habitable world and access to it, what would the effects be of a longer day to those who were subsequently born and raised there? Is there any evidence that a longer day cycle (o...

2 answers  ·  posted 5y ago by Tommy‭  ·  last activity 5y ago by Tommy‭

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Q&A What's the overlapping calendar of two different lunar cycles

In My world of PD there are two distinct moons, Aurie is a big cream colored moon on a 32 day cycle and Chi is a smaller rust- colored moon on a 20 day cycle. Can somebody help me figure out how of...

3 answers  ·  posted 5y ago by Bett Struble‭  ·  last activity 5y ago by Bett Struble‭

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Q&A How would a Lunar Calendar be set up with 2 moons?

So I have a super-Earth that has 2 moons. Moon 1 is a bit smaller than our moon, and has an orbital period of 19.25 earth days. Moon 2 is larger than our moon and has an orbital period of 147.15 da...

3 answers  ·  posted 7y ago by Redwolf‭  ·  last activity 5y ago by Redwolf‭

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Q&A What calendar would the Saturn nation use?

In my next novel, there are three major powers in the solar system: Earth, Mars, and Saturn. Earth runs on a slightly modified Gregorian calendar, Mars goes with the good old Darian calendar, and S...

5 answers  ·  posted 5y ago by Classified Angel‭  ·  last activity 5y ago by Classified Angel‭

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Q&A 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...

7 answers  ·  posted 10y ago by Nerrolken‭  ·  last activity 5y ago by Nerrolken‭

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Q&A If clock and calendar was reinvented with today's knowledge, what could they look like?

Our notion of recording and communicating time and date is based on very old concepts, many of them being built upon flawed assumptions (that the Sun should be at exact south at noon, that a year s...

9 answers  ·  posted 8y ago by The Vee‭  ·  last activity 6y ago by The Vee‭

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Q&A What's an astronomical event which happened about 10,000 years ago, which humans could have noticed?

Bob is older than he looks. Specifically, even though Bob looks like he's in his twenties or thirties (it's hard to tell), he was actually born in Europe about ten thousand years ago, long before ...

11 answers  ·  posted 6y ago by Tanner Swett‭  ·  last activity 6y ago by Tanner Swett‭

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Q&A How to distinguish the different phases of the day when the sun rises and sets multiple times?

Obviously there would be a lot of small (not to mention a couple large) changes humans would need to get used to on a planet that rotates much faster than Earth. The biggest one I'm concerned about...

2 answers  ·  posted 6y ago by Z. Schroeder‭  ·  last activity 6y ago by Z. Schroeder‭

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Q&A How far can civilization go without inventing the calendar?

While only counting seasons and years, but not weeks or months, how far can human civilization progress? Can they reach the middle ages? Or is the invention of the calendar such a cornerstone of ...

3 answers  ·  posted 6y ago by Mindwin‭  ·  last activity 6y ago by Mindwin‭

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Q&A How does one calculate the length of a planet's solar year?

I have a planet with a specified sidereal day and sidereal year, and a solar day. But how can I determine the length of its solar year from this? Sidereal day: 1d 1h 52m 11s Solar day: 1d 1h 54m ...

1 answer  ·  posted 6y ago by RealEgoraptor‭  ·  last activity 6y ago by RealEgoraptor‭

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Q&A How would someone keep time on Mars?

I understand that a Sol is a Martian day, a little longer than a day on Earth (... 30 minutes I think?) and there are 24 months using the Darian calendar. So if people lived on Mars, what is a casu...

2 answers  ·  posted 6y ago by Charlie Kovas‭  ·  last activity 6y ago by Charlie Kovas‭

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Q&A How to calculate hour angle of a moon?

I am trying to construct a standing stone calendar for my world Jasmi, located at latitude 53.8 degrees South. To do this, I need the hour angle of moonrise and moonset for my world. The problem is...

1 answer  ·  posted 6y ago by Rúnatál Davino‭  ·  last activity 6y ago by Rúnatál Davino‭

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Q&A 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...

1 answer  ·  posted 6y ago by Rúnatál Davino‭  ·  last activity 6y ago by Rúnatál Davino‭

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Q&A Year marking astronomical event with extreme perihelion precession

For us earthlings, the concept of "year" came from the observation that the Sun reaches a minimum and a maximum span in the rise-set path in the sky. On a planet experiencing extreme perihelion p...

1 answer  ·  posted 7y ago by L.Dutch - Reinstate Monica‭  ·  last activity 7y ago by L.Dutch - Reinstate Monica‭

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Q&A What do Martians use for months and weeks?

Assume Mars has developed an indigenous civilization of its own, perhaps as seen in Edgar Rice Burroughs' A Princess of Mars. Much like Earth, Mars' years and days would be significant for any in...

5 answers  ·  posted 7y ago by kingledion‭  ·  last activity 7y ago by kingledion‭

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Q&A 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...

9 answers  ·  posted 7y ago by ultorian‭  ·  last activity 7y ago by ultorian‭

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Q&A The 372-Day Calendar

There seems to be a connection between orbital revolution (one year) and distance from the star the body orbits. For example, Earth orbits the sun at a distance of 93 million miles and completes o...

1 answer  ·  posted 7y ago by JohnWDailey‭  ·  last activity 7y ago by JohnWDailey‭

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Q&A Accuracy of timekeeping based on the age of Earth

In many countries, we number the years based off of proximity to an event in the Christian religion - we are over 2016 years past that date. However, in this scenario, religion has become less main...

4 answers  ·  posted 8y ago by Zxyrra‭  ·  last activity 8y ago by Zxyrra‭

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Q&A Standardisation of Time in a FTL Universe

Here on Earth, time standardisation was enabled by the invention of accurate time pieces which allowed us to create a global constant (GMT/Zulu time) and regional offsets. If we travel outside our...

19 answers  ·  posted 8y ago by System‭  ·  last activity 8y ago by System‭

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Q&A Multiple moons orbiting a gas giant: How would I calculate how long it appears for a closer moon to orbit the planet from a further-out moon?

I have a habitable moon orbiting a gas giant, and there is another moon orbiting the planet on a closer orbit. The cultures on the near-side of the further, habitable moon use the transit of the cl...

1 answer  ·  posted 8y ago by Ymra N‭  ·  last activity 8y ago by Ymra N‭

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Q&A Timekeeping Systems on a Habitable Moon

Ok, this is take two. Hopefully this is specific enough. I have a link to the original question here. And for those of you eager to see my sources for this, I'll link two videos here from the You...

1 answer  ·  posted 8y ago by Atlas the Worldbuilder‭  ·  last activity 8y ago by Atlas the Worldbuilder‭

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Q&A Would people living on different ringworlds around the same star measure time differently?

Okay so I have a sci-fi world masquerading as a fantasy world where numerous different genetically-engineered humanoids live on nine different ringworlds orbiting an artificial Earth-mass black hol...

1 answer  ·  posted 8y ago by Z.Schroeder‭  ·  last activity 8y ago by Z.Schroeder‭

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Q&A 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 whi...

5 answers  ·  posted 8y ago by Z.Schroeder‭  ·  last activity 8y ago by Z.Schroeder‭

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Q&A My BIG World Needs More Suns

Summary version: So we're talking people living on top of 30 miles of topsoil, fake dino fossils and water on the outer surface on a hollow (but sturdy) unobtanium sphere with a radius about 1 AU....

2 answers  ·  posted 8y ago by Serban Tanasa‭  ·  last activity 8y ago by Serban Tanasa‭

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Q&A How can a floral clock be made accurate enough to replace normal timekeeping?

A village is famous for its flowers and wants to bring in tourism by replacing its timekeeping and basing everything around a flower clock. Schools and shops all agree to set their times by the flo...

4 answers  ·  posted 8y ago by Tim B‭  ·  last activity 8y ago by Tim B‭

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Q&A What would a lunar calendar look like?

First see this great answer on considerations when making a calendar. Consider a human colony on our own moon. Let's assume that the colony is influenced by the Gregorian calendar. Let's suppose t...

4 answers  ·  posted 10y ago by 17482‭  ·  last activity 10y ago by 17482‭