Alternative Calender/clock systems?

[Arugela]

Not sure if this has any use. But I was messing with something and came across a weird number set. Not sure how to make it fit an exact year. But it makes an alternative clock.

It's base on a second being equivilent to 2.777777777777777 current seconds.

It has a structure of 12 hours/12 minutes/9 seconds. It equals to one current day. This does not resolve the existing issue with left over days, but does fit a 360 day year. Was this ever used in the past. Does it have any odd applications now? It might fit 12 hour clocks if repurposed slightly.

A day has 144 minutes and 1296 seconds. 3600/1296 = 2.77777777777. Somewhere in there it has to do with 1/3 and 2/3 times instead of 10 based I think. I can't refind how I got that though. So, it's actually more fitting to 360. Or should I say it's another aspect of a 360 day cycle naturally. 1 being 10 and this being 3 based.

Could this be combine with the current 10 based system to find a solution to the 365.24219 day problem. It might make a spiffy dual system on a clock if not.

BTW, this and the 3600 day can be converted at the minute mark as 3600/144 = 25 and 3600/9 = 400. Or am I thinking this out wrong?

found the 1/3 part. If you take 9 seconds * 12 minutes you get 108. 360/108 = 3.3333333333. So, a clock face would have 3 hours doing one rotation. Or 1/3 of a circle. That means a clock can have one day equal to 4 rotations of a clock instead of 2 like a 24 hour current clock in 12 hour chunks. Edit: NVM, that isn't correct at all. 8) It's 3.333333 of a circle though. That would make it a bit odd if that was implemented like that. but 1 hour is 3.33333 parts of a circle. So you could divide 3 hours into 10 parts and a day into 40 parts on a clock. No idea if that is useful at all.

A day(and/or year?!) would have 4 quadrants each with 10 parts each. Those 10 parts would be made up of 9 smaller parts?! Or am I missing something. I feel like I am.

You could also use a 12 hour clock using 12/12/9. Might be confusing something though.

That means an overlapping 4 seasons divided by 10 units and a 12 month setup simultaneously. 12 months with 12 days and each with 9 hours?

Does this make a weird overlapping time system? I assume you could make simultaneous 12 hour and 9 hour days. Could this concated system potential find a way to fit a 365.24219 day year? If it keeps overlapping it might find a naturally fitting systems. Or does it just make a weird system based on 360 degree circles.

If this is basically the inverted version of our current time system could both be combined to make a 24/12/9 hour day system or more?

I think the 108 parts in an hour come out to a 9/10's system. Isn't that the basis of decimals or the 0vs1 logic in our 10 based number system?

Edited December 11, 2021 by Arugela

[RCgothic]

My favourite alternate calendar is:

12 months of 5x 6-day weeks. 5-6 additional days attached to the end of December as a festive period. Months always begin on Monday 1st. Tuesdays dropped.

Pros: 4 day working week. Only one irregular month. Weeks fit neatly into months. Calendar much more regular overall. There will always be 61 Mondays, Wednesdays, Thursdays, Fridays and Saturdays in a year, and 60-61 Sundays. Need to organise a meeting on the 7th? Know it will always be a Monday. 

Cons: Religious attachment to 7 day weeks. Birthdays on weekdays will never fall on weekends.

I don't think there's much mileage in redefining the clock. For a start SI units are often defined in terms of seconds, so that'll alter so many constants for no real benefit.

There is no universal clock and calendar that makes any kind of sense off-world. We'll probably do some sort of stardate with a basis of kiloseconds or something.

[JoeSchmuckatelli]

Time is a made up construct. 

 

 

 

My boss at the restaurant I worked at 30 years ago (and was often late to) did not seem to care. 

[StrandedonEarth]

42 minutes ago, RCgothic said:

Birthdays on weekdays will never fall on weekends.

Birthdays would be personal stats. Weekend birthdays observed on Mon/Fri or mutual consent

[magnemoe]

1 hour ago, JoeSchmuckatelli said:

Time is a made up construct. 

My boss at the restaurant I worked at 30 years ago (and was often late to) did not seem to care. 

Hours are made up, days and sessions are not.  The French revolution had an alternate clock and calendar. 10 days weeks and 10 or 20 hour days. 

Now the real interesting thing would be like an teraformend Mars, here you would have an much longer year and a day who is a bit off. 
My guess here is that they would keep 365 days for birthdays and religious holidays but the Mars year for agriculture and summer holidays. 

[kerbiloid]

A two-day weekend is necessary. The first day to drink down, the second day to sober up.

The day-before-weekend (currently known as Friday) should be a lightened work day. Because everyone anyway keeps in mind that today is Friday.

The day-after-weekend (aka Monday) is also a bad day for work, because some prefer to drink all weekend long and start sobering in bus.
Better avoid important job activities on Monday and on Friday unless you wish for adventures.
Also a lightened work day.

So, we have fours necessary days.

Once everyone has gotten sober and awaken, you do the main work of the week. It's "Tuesday".
See, Squad usually follows the rule, the release day is Tuesday.

The next workday after "Tuesday" you need a day to collect the customers' reaction and try to calm them.
It's Wednesday.

Then you need a time-out day to think how to fix the bugs collected on "Wednesday", the Thursday.

Then you need a day to quickly fix thebugs and a day to ensure that the bugfix works, and the most nasty customer screams has gone.
It's two Thursdays.

Then you need a Friday because anyway can do nothing before the weekend.

So, the proper week should consist of:

Wakeday or Soberday (former Monday)
Workday (former Tuesday)
Screamday (former Wednesday)
Thoughtday (an intermediate mini-Sunday between Wednesday and Thursday).
Fixday (first Thursday)
Waitday (second Thursday)
Preweekend (Friday)
Drinkday (Saturday)
Postdrinkday (Sunday)

So, 9 days in a week.

365..366 = 40x9 + 5..6

Four seasons, 10 weeks each, and 5..6 days of winter holidays.

[Nuke]

too many thursdays. i think we just need a third day in the weekend  and replace wednesday with a day where it is ok to have 3 beers for lunch.  especially in lieu of legalization of other substances, where you need an extra day of recovery (the responsible approach), or a second day where you listen to jimi hendrix and discuss the meaning of string. i for one wouldn't mind a 24 hour work week to become the new full time.  if we legalize other substances of which walter white is familiar, we could do that 24 hour work week in one day and have a 6 day weekend. 

Edited December 11, 2021 by Nuke

[kerbiloid]

15 hours ago, Nuke said:

too many thursdays

No, no, that's by design.

Look.
The 9-day week is actually a week with double Tuesday and double Thursday.
This totally satisfies the usual "If the day had 48 hours!" desire.

The Wednesday becomes a semi-holiday.
This is a library day for academicians (idk, if there is such day in the English universities, when a scientist has a day to spend in library, stealing learning others' wisdom from books).
It's a have-a-rest day for other nerds.
It's a think-pause day for the ITs.
It's a drink-pause day for the interested persons.

Actually, the Wednesday becomes the top of the week, a semi-holiday opposing the weekday, dedicated to absorb the wisdom of any kind.
And look: Wednesday is "Odin's day", and Odin was a deity of wisdom (let alone the fact that his wisdoms usually resulted in someone's death, injuries, or devastation; or at least in a stolen souvenir).
It's a Wizday.
So, the 9-week has a cyclic structure: 

             1 Wizday
  2 Workdays           2 Workdays
1 Semi-workday        1 Semi-workday
            2 Rest days

 

More of that.

In case of the 9-week we get 40 weeks + 5..6 outweek days.

This os  4 x 10 or 5 x 8.

But do we actually need months in such case?
The month is a purely Moon-related thing, while four seasons are precisely fixed by the Solstices and Equinoxes.
So, it looks wise to divide the year in four parts using the Solstices and Equinoxes as markers.

10/4 is not integer, while 8 /4 is.

So, we should have 4 seasons, each 2x5 9-day weeks long.

A usual month usually has 4.5 7-day weeks, so we can easily replace the "months" with season halves, each 5 weeks long..

And see: the Solstices and Equinoxes are perfect astronomic markers, but they don't match weather seasons.
Unless you treat them as a middle, rather than a beginning of the season.

So, there should be 4 seasons, with Sols. or Eq. as a "season top", with 5 weeks of the "early season" before and 5 weeks of the "late season" after.

In this case:
"Early Summer" ~1 May..21 Jun,
"Top of Summer" ~22 Jun
"Late Summer"~23 Jun..1 Aug
and so on.

(Actually, this more or less matches the known from internet "Celtic calendar", though idk how much is it Celtic, and why should the Celtic voodoo be cared about at all, when the Roman voodoo appeared to be longer and stronger, as prove Ivlivs Caesar).

But anyway.
There is a "half + 1 day + half" structure of a season, and of a week
Just a season has "5 weeks + 1 day + 5 weeks"m while a week is "4 days + 1 day + 4days".

So, every season is 91 long, and there is 1..2 days to be placed somewhere to adjust the astronomy.

The middle day of every period is a Wisdom day, in most wide, primordial, and brutal  sense of "wisdom".

Spoiler

I should self-quote here to explain.

Something silly in English is called "nonsense".

Obviously, it shoukd be historically spelled as "no-nse-nse", where "no" means absense, while a double syllable _{look, a rhyme!} in archaic speech means "much of".

And also the "nse" we can see in "scie-nce".

This tells us that "nse" is an ancient English word for "wisdom".

nse = wisdom
nse-nse = much wisdom
no-nse-nse = not so much wisdom
scie-nse = professional, i.e. paid wisdom

So, the middle day of every period is its Day of Nse.

 

Edited December 12, 2021 by kerbiloid

[JoeSchmuckatelli]

8 hours ago, kerbiloid said:

No, no, that's by design.

Look.
The 9-day week is actually a week with double Tuesday and double Thursday.
This totally satisfies the usual "If the day had 48 hours!" desire.

The Wednesday becomes a semi-holiday.
This is a library day for academicians (idk, if there is such day in the English universities, when a scientist has a day to spend in library, stealing learning others' wisdom from books).
It's a have-a-rest day for other nerds.
It's a think-pause day for the ITs.
It's a drink-pause day for the interested persons.

Actually, the Wednesday becomes the top of the week, a semi-holiday opposing the weekday, dedicated to absorb the wisdom of any kind.
And look: Wednesday is "Odin's day", and Odin was a deity of wisdom (let alone the fact that his wisdoms usually resulted in someone's death, injuries, or devastation; or at least in a stolen souvenir).
It's a Wizday.
So, the 9-week has a cyclic structure: 

             1 Wizday
  2 Workdays           2 Workdays
1 Semi-workday        1 Semi-workday
            2 Rest days

 

More of that.

In case of the 9-week we get 40 weeks + 5..6 outweek days.

This os  4 x 10 or 5 x 8.

But do we actually need months in such case?
The month is a purely Moon-related thing, while four seasons are precisely fixed by the Solstices and Equinoxes.
So, it looks wise to divide the year in for parts using the Solstices and Equinoxes as markers.

10/4 is not integer, while 8 /4 is.

So, we should have 4 seasons, each 2x5 9-day weeks long.

A usual month usually has 4.5 7-day weeks, so we can easily replace the "months" with season halves, each 5 weeks long..

And see: the Solstices and Equinoxes are perfect astronomic markers, but they don't match weather seasons.
Unless you treat them as a middle, rather than a beginning of the season.

So, there should be 4 seasons, with Sols. or Eq. as a "season top", with 5 weeks of the "early season" before and 5 weeks of the "late season" after.

In this case:
"Early Summer" ~1 May..21 Jun,
"Top of Summer" ~22 Jun
"Late Summer"~23 Jun..1 Aug
and so on.

(Actually, this more or less matches the known from internet "Celtic calendar", though idk how much is it Celtic, and why should the Celtic voodoo be cared about at all, when the Roman voodoo appeared to be longer and stronger, as prove Ivlivs Caesar).

But anyway.
There is a "half + 1 day + half" structure of a season, and of a week
Just a season has "5 weeks + 1 day + 5 weeks"m while a week is "4 days + 1 day + 4days".

So, every season is 91 long, and there is 1..2 days to be placed somewhere to adjust the astronomy.

The middle day of every period is a Wisdom day, in most wide, primordial, and brutal  sense of "wisdom".

  Hide contents

I should self-quote here to explain.

Something silly in English is called "nonsense".

Obviously, it shoukd be historically spelled as "no-nse-nse", where "no" means absense, while a double syllable _{look, a rhyme!} in archaic speech means "much of".

And also the "nse" we can see in "scie-nce".

This tells us that "nse" is an ancient Ebglish word for "wisdom".

nse = wisdom
nse-nse = much wisdom
no-nse-nse = not so much wisdom
scie-nse = professional, i.e. paid wisdom

So, the middle day of every period is its Day of Nse.

 

OMFG! This is Monty Python level stuff! 

8D

Bravo! 

Edited December 12, 2021 by JoeSchmuckatelli

[Arugela]

If solstices adjust that would give a reason to have the floating days and a way to lay the out potentially. If there is a practical needed way to even out the time.

You could throw an extra day out at the solstices to distribute the last  5days. But you still have one day and potential change left over. How far off can solstices and equinoxes be?

NVM, missed the half day and 91 days thing. does that use up the entire 365 days?

360 is 4 quadrants. If you want 9 day weeks that leaves 10 weeks in a season plus extra days. That is already 91x4. Not sure I understand the extra days fully though.

So, that is 90(91) day seasons, 10 weeks each and 9 day weeks(With extra days). 12 hour days with 12 minutes per hour and 9 seconds per minute with a second being 2.7777777 current seconds.

BTW, 9/10's is related to base binary and may have another natural solution. Not sure if that ties in though. Maybe on a greater cross year scale?

Solstices or equinoxes usually have lots of eating and are used to use up the extra foot at certain times of year. That could be feasting holiday days and use up some of the vacation days. I think it's to use up extra crops so they don't go to waste. Mostly because in the past we had somewhat different food storage realities. Or we didn't have our newer ones to throw on top of the old ones.

https://celticlifeintl.com/the-gaelic-calendar/

Quote

When spring finally comes it usually arrives on the back of storms, rain and fierce winds. This is why it is so associated across Europe with the Roman God of War, Mars – and in the Highlands it was no different. March is Am Màrt, which comes from the same root. April is called the ‘Pudding Month’, An Giblean. The reason for this is more obscure, but my sources tell me that with summer just around the corner the fats, oatmeal and other stocks that saw the village through the winter were gathered together for a great feast, and that pudding (in the traditional sense) was the best way of cooking the leftovers. Spring is known as An t-Earrach, and reflects the sun rising more towards the east and the end of the cold days.

So, they had pudding days...

And bread feasts:

Quote

The hottest month of the year in Scotland is July, and the main holiday month correspondingly (it is also the month with the least chores on the farm). In Gaelic it is An t-Luchar, simply the ‘warm month’. The first great harvest festivals began in the balmy days of August, which in Gaelic is An Lùnasdal. The God Lùgh was a hero god, of skill, artistry and war, and seems to have had a pan-Celtic appeal. The name derives from root words for sun, shining bright or lightening; and it may simply correspond to the long blue-sky days of August, or to the lightning storms that accompany the humidity. Either way, he was a popular figure in Celtic mythology, and the bread feasts were almost certainly dedicated to him. In old Scots the Lammas (or loaf-mass) fair took place in August, and there may be a linguistic connection.

And getting chubby before winter feasts:

Quote

The final month of the summer is September, which is known as the fattening time:  An t-Sultain. Here you can see the cycle of the year creaking back towards the winter ahead, and the start of the preparations to see the village through those harsh days on the horizon, and the cattle needed to be fattened now if they were to survive. With the passage into October the calendar moved into Am Foghar, autumn. The root of this word is fogh, meaning hospitality. This is the time for festivals, feasting on the harvest riches, drinking of the ale made from the corn finally brought in: one last Hurrah before stocking up and bedding down for winter.

I'm not sure how they are lined up, but something like this could take up those 5 days. That would technically be winter in some cases. Just a different winter.

Actually:

Quote

Out in the hills nature too is preparing for winter, and for the spring that will surely follow. The Red Deer stags begin their bellowing and rutting; fighting with those huge antlers for the right to control and have sole mating rights over their harem of hinds. So, October is known as An Dàmhair, the ‘stag or rutting month’. As the first frosts start to bite, and the snow returns to the high peaks, our villagers know that the great festival of fire and water, Samhain is nigh. This is last feast of the autumn; a time to cleanse the village of evil spirits, to go through ritual and trial, and to pray for a benign and short winter. The festival lasted for two days, but the Gaelic calendar affords the whole month of November as An t-Samhain due to its importance.

Boinking dear feast took up 2 days. So, that is a 2 day festival. If you have 3 other 1 day festivals you have your 5 days and then you just need to throw in your 2.4219 days somehow. Either like we do now or maybe some other solution. Assuming it's not take up by the equinoxes/solstices adjustment times. If it is and the feasts are on the same time then you have your whole 365.24219 days take up potentially. If it's accurate enough.

You can alternatively adjust the 9 day week to a 10 day week and have normal 12 months also. Which puts us close to where we started. You might be able to fluctuate between 9/10 day weeks. I think that is where february came from. 9+10+9 = 28... 28x12 = 336. 365=336=29. That is a 13 month year.

Edited December 14, 2021 by Arugela

[JoeSchmuckatelli]

I've literally been waiting for years to see our species become multi-planetary just for this kind of wrangling to become common. 

Land us on another earth like and hospitable planet with a rotation of 27 hours and an orbit just under 16 Earth months... 

You thought Y2K was a mess? 

Edited December 14, 2021 by JoeSchmuckatelli

[kerbiloid]

6 minutes ago, JoeSchmuckatelli said:

I've literally been waiting for years to see our species become multi-planetary just for this kind of wrangling to become common. 

Land us on another earth like and hospitable planet with a rotation of 27 hours and an orbit just under 4 months... 

You thought Y2K was a mess? 

I'm optimistic about the extraterrestrial clock and calendar systems.

As the humanity unlikely will ever colonize a planetary surface (in the Solar System - exactly won't), but keep living in orbital bases and use the planetary surface for unhumanned industry and endless plantations of crops and algae, they will be using the terrestrial clocks and calenders wherever they live, because an orbital habitat anyway makes 1 orbit per 1..2 hours, so they will follow their internal day schedule, totally disconnected from the planet below.

[MKI]

Headline: "New calendar clock"

Next Day Headline: "Millions of programmer voices suddenly cried out in terror, heard around the world"

 

On 12/11/2021 at 12:24 AM, Arugela said:

does fit a 360 day year. Was this ever used in the past. Does it have any odd applications now?

Wouldn't this mean the year doesn't actually start/end with the Earth in the same place in the orbital plane? Not including any possible offsets/adjustments, like leap years and leap seconds?

 

 

[JoeSchmuckatelli]

30 minutes ago, kerbiloid said:

I'm optimistic about the extraterrestrial clock and calendar systems.

As the humanity unlikely will ever colonize a planetary surface (in the Solar System - exactly won't), but keep living in orbital bases and use the planetary surface for unhumanned industry and endless plantations of crops and algae, they will be using the terrestrial clocks and calenders wherever they live, because an orbital habitat anyway makes 1 orbit per 1..2 hours, so they will follow their internal day schedule, totally disconnected from the planet below.

I agree that orbital or even Mars colonies would be essentially tied to the terrestrial clocks and calendar systems - because inside a contained environment they are merely outposts of our own civilization... Little different from a boat.  Everything already runs off UTC... So will the orbital colonial / Mars or Europa habitats. 

 

But you plunk down a whole lot of people able to run around outside and experience winter, summer, sunrise and sunset on a different planet?  Very quickly they are going to become attuned to their environment and UTC /Earth calendar will seem anachronistic and inappropriate 

[Kerwood Floyd]

There are two fundamental issues that any calendar/clock reform has to deal with: 

1. Because the second is the central base unit of the SI, redefining the second requires redefining every* other base and derived unit in the SI. In practical terms, this means you cannot redefine the second. You can mess around with any larger units of time, but the second, at this point, is baked into so many other things as to be pretty much unchangeable.

2. The seven day week is here to stay until all three Abrahamic religions go away (which is not likely to happen for a very long time).

I know that both of these points have been made up-thread, but I think they bear emphasizing.

 

* Well, I guess not the mole. 

[kerbiloid]

45 minutes ago, JoeSchmuckatelli said:

But you plunk down a whole lot of people able to run around outside and experience winter, summer, sunrise and sunset on a different planet?

Gravity, chemical impurities, lack of magnetic field, will kill this idyll before it starts.

So, only working shifts will be visiting the planet surface on request, and leave it asap.

There will be no need in synchronizing their clocks with the outdoor illumination anyway, because many people on the Earth have night and morning shifts and live in the artificial light without any care if there is day or night outside.

Also look at the Scandinavians, Alaskans,  and Canadians,
Even when they are pretending that the round thing with arrows, hanginng on their wall, means "day" or "night" hours, actually they just cosplay the time layout known for them from the Southern legends.

Because of the polar day/night.

[JoeSchmuckatelli]

14 minutes ago, Kerwood Floyd said:

The seven day week is here to stay until all three Abrahamic religions go away (which is not likely to happen for a very long time).

I wonder about that... (although, before we get started, let me acknowledge my 'scenario' won't happen for 'a very long time').  I think humans are way more 'experiential' than we like to admit.

In popular Sci-Fi there's two tropes of colonization of other worlds: the advanced and intrepid 'venture forth into the unknown'/ mid-1800's American-analog of the rugged individualist who braves the wild in search of his freedom... and the other American analog of the Pilgrims/Mormons, unhappy with not being free to persecute non-believers to their heart's content (or being persecuted by non believers) venture into the unknown to establish their own Zion away from the rest of humanity.

In the second case: I can see them trying to force, initially, an earth-derived mythology onto their new reality.  But in the first case - I see those folks as being much more flexible in attuning themselves to their new environment... making their calendar correspond to their daily reality.

Humans on a planet that takes (I edited my post above to reflect this) 482 twenty-seven hour days to orbit its star will have what feel like 4 month long seasons.  Both groups are going to have to wrestle with that - because after a couple of generations, the 'new normal' will have nothing in common with Earth... But their experiences will inevitably inform their decision making.

The 'second' as you point out is important... it's a heartbeat.

Sixty seconds being a minute makes sense: easy to draw a circle with, and break up into quadrants.  Might as well also have sixty minutes be an hour.  Same reasons.

A 'day' is easy.  Its the full period of light and dark experienced on the planet.  Who cares how many hours it is?  24 works on Earth - and is also easily broken into quadrants... but that's not nearly as necessary.  Probably be some wrangling at this point as to whether an hour needs to be more than 60 minutes to make 27 hours = 24, but I doubt it.

But when it comes to months?  The orbit will dictate 4 seasons on a habitable human world.  Do we keep the names we know - and make each month of a 12 month calendar longer to account for the 482 days?  You've got 120 day seasons instead of 90 - so do you have 40 day months...  Or do we add one month with a new name to each season and have 16 30-ish day months?

13 minutes ago, kerbiloid said:

Gravity, chemical impurities, lack of magnetic field, will kill this idyll before it starts.

So, only working shifts will be visiting the planet surface on request, and leave it asap.

I think you are talking Mars or some other local rock.  I'm talking about the currently unknown, idyllic, human habitable planet w/o sapient residents that we will find in SciFi years from now.

[kerbiloid]

19 minutes ago, JoeSchmuckatelli said:

I think you are talking Mars or some other local rock.  I'm talking about the currently unknown, idyllic, human habitable planet w/o sapient residents that we will find in SciFi years from now.

No, I'm about almost any solid planet.

Any planet would have gravity slightly (or significantly) different from the human organism is adapted for, another day duration, excess of CO2 or absence of oxygen in the atmosphere (2..3 times higher CO2 or 19% of oxygen instead of 21), some chemically active or abrasive components in the soil (if there is soil at all, as its a mix of sand and rotten plants), an allergic agent, another level of UV, etc.

The human has appeared as a cognitive species already depilated and equipped with axe, spear, fire, and fur coats (they were invented by the semi-sapient pre-humans a million of years before him), so it's doomed/gifted to always live in an artificial medium, but can have developed the artificial medium on his own.

Even the most trained survaivalist can't live wild long. He will anyway start making tools, fire, hut, clothes, i.e. reproduce the artificial medium. There are no "wild humans", except very unique in warm climate, and not for decades.

So, any extraterrestrial habitat would have even less common with the "wild nature". It will be a fully artificial medium, usually in pressurized containers.

If the 1000th colonized planet appears to be a paradise, the methods from the 999 previous ones won't disappear. Just a cost of mistake would be lower.

An example. Does anybody care while playing KSP, is it day or night ouside of the Duna base? Just add more lamps.

Edited December 14, 2021 by kerbiloid

[magnemoe]

6 hours ago, kerbiloid said:

No, I'm about almost any solid planet.

Any planet would have gravity slightly (or significantly) different from the human organism is adapted for, another day duration, excess of CO2 or absence of oxygen in the atmosphere (2..3 times higher CO2 or 19% of oxygen instead of 21), some chemically active or abrasive components in the soil (if there is soil at all, as its a mix of sand and rotten plants), an allergic agent, another level of UV, etc.

The human has appeared as a cognitive species already depilated and equipped with axe, spear, fire, and fur coats (they were invented by the semi-sapient pre-humans a million of years before him), so it's doomed/gifted to always live in an artificial medium, but can have developed the artificial medium on his own.

Even the most trained survaivalist can't live wild long. He will anyway start making tools, fire, hut, clothes, i.e. reproduce the artificial medium. There are no "wild humans", except very unique in warm climate, and not for decades.

So, any extraterrestrial habitat would have even less common with the "wild nature". It will be a fully artificial medium, usually in pressurized containers.

If the 1000th colonized planet appears to be a paradise, the methods from the 999 previous ones won't disappear. Just a cost of mistake would be lower.

An example. Does anybody care while playing KSP, is it day or night ouside of the Duna base? Just add more lamps.

Well if you live up in the mountains the air pressure and the oxygen you get is lower, this is not an problem unless you start getting 3 km up as long as you live there. 
Slight changes in gravity as in 0.8 to 1.2 g is likely to have no effect compared to exercise.  On an teraformed mars, it will be an issue, how much we do not know. 

Anyway for an Mars base it would make sense to follow local mars day cycle rater than the command center on earth simply as the base has lots of outside activity the command center does not. For an moon base or orbital station using the command center time is better. 

And day or night in KSP has huge effects, for one you tend to use lots of solar power simply running an research lab can easy have you run out of power not to talk about mining fuel, Rovers and probes even spaceships can run out of power. Also landing and driving rovers in the dark is much more dangerous in unfamiliar areas.