Questions tagged [time-keeping]

For questions about systems used to distribute time into certain periods adapted to the purposes of common life, as hours, days, weeks, months, years, etc.

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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 ...
4
votes
4answers
609 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 ...
39
votes
11answers
5k views

A world without natural time measures

An intelligent race evolves on a planet with no moon or axial tilt, which is tidally locked to its star, and has a very hazy atmosphere. So there are no seasons, no day/night cycle, and the stars are ...
6
votes
6answers
1k views

How would my dwarves tell time underground?

How could they keep track of the "Surface World Time?" Parameters: Very little contact with the surface world Phobia of "just go and check" It is needed to know when traders will descend They don't ...
42
votes
19answers
9k views

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 ...
17
votes
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 ...
24
votes
7answers
2k views

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 ...
20
votes
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 ...
5
votes
3answers
454 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. ...
41
votes
6answers
2k views

What are some things to keep in mind when designing a calendar?

There are many different calendar systems on earth. Of course, since a fictional world very well may differ greatly from Earth, it makes sense for them to have their own calendar. What are various ...
22
votes
5answers
4k views

How can I create original holidays for my world?

How can I create holidays/traditions for my fictional world? I want these holidays to be believable and original, not just something inspired by a holiday we have here. An obvious course of action ...
42
votes
16answers
9k views

How do you tell time on a world with 9-year days?

On my world, the day lasts 9 years: 4.5 years of light, followed by 4.5 years of dark. The inhabitants of this world survive by migrating along the ring of dusk and dawn. How do these people tell ...
17
votes
10answers
5k views

What would a Martian calendar look like?

On Earth, the mostly used calendar is the Gregorian calendar. This calendar has many issues though, just to list some: It is not perennial. Each year starts on a different day of the week and ...
7
votes
3answers
916 views

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 days. ...
9
votes
2answers
397 views

Galactic Calendar System

In a galactic civilization with multiple races, what would be an ideal calendar system that everyone could use? FTL travel is possible (please no answers involving the implications of FTL, for the ...
8
votes
1answer
288 views

How do calendar systems arise? How would this affect a civilization's time-keeping if originating on the moon of a gas giant? [closed]

So I understand how gas giants and their many, many moons operate, and I can make educated guesses about how Earth-sized satellites could orbit a large gas giant, as well as how gas giants can be in ...
5
votes
1answer
385 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
4answers
321 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 ...
0
votes
4answers
149 views

What would our calendars be like with no astronomical cycles? [duplicate]

What would calendars and our concept of time be like if there were no astronomical cues? If we lived in perpetual daylight and perpetual summer. The Sun, Moon, and stars are all fixed in the sky. ...
-1
votes
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? ) ...