This must be a well deserved 10 points, Who decided on time?

Question

Who sat there and decided 365 days in a year 366 every 4th year, 12 Months 7 shall have 31 days, 4- 30 days and 1- 28. 24Hours in a day 60 minutes in an hour 60 seconds to a minute. And most importantly when did this actually start?

Answer 1

I think Babylonians are originally responsible for the 60 in 60 minutes.

The 365 and a bit days in the year is actually fixed by the sun/earth system - the earth orbits in a bit over 365.25 days, where a day is one noon to the next noon.

Unfortunately the length of the year is not exactly a fixed number of days so it's necessary to keep adding in/removing days to keep things lined up.

The original Babylonian year was 360 days. The Babylonians were big on the number 60 - like our modern world has a decimal basis theirs featured a lot of measurements involving 60s. Not sure why.

The months were originally supposed to be based around a lunar cycle of 28 days. But you cant get that to fit with a 365 day year - or even a 360 day year.

I think the Romans were originally responsible for the mix of 30/31 and 28 day months. Most months were initially 30 but many were extended when the calendar was found to be broken in that there were not enough days in the calendar 'year' to match with the solar cycle.
They invented the leap year!

They did a pretty good job - it took another thousand years until things started to get out of sync again. But eventually in the late middle ages the Catholic church decided to try to fix things again.

They (a) needed to know exactly how long the year was - accurate to a few minutes
(b) invent a scheme for keeping the calendar scheme aligned with the real solar year

When the updated scheme was introduced it didn't come into effect all at once so different countries joined at different times - and the later you left it the more days you were out of sync.

Britain joined when they had 'drifted' by 5 days - so the end of the tax year was forced to move from March 31 to April 4!

By the time Russia joined they were in the wrong month - so the 'October Revolution' actually happened in September!

Answer 2

Some are easy, the earth revolves around the sun in 1 year, the earth rotates on its axis in one day.
The moon revolves around the earth in one (lunar) month.
There are 13 lunar months (28 days) in a year. Who spoilt it by adding extra days so that now 1 year = 12 months, I don't know.
As for seconds minutes and hours, this might have come from the geometry of a circle.
A circle was divided into 360 parts caled degrees. Each degree was split into 60 parts called minutes, each minute into 60 seconds...I don't really know which developed from which (chicken/egg syndrome).
Good question by the way, I'll be watching your answers.

Answer 3

There is nothing magic about the calendar. It's a "construct", a methodology used to help mankind mark the passing of time and movement of bodies in small and large increments.

Measuring and marking time has been a dynamic process almost as old as man himself. It has changed hundreds, if not thousands, of times and been measured in hundreds, if not thousands, of different calendars in different civilizations.

But the origin of the calendar probably arose from the need for ancient people to predict nourishing floods (e.g., ancient Egypt's annual Nile flooding) and when to plant and harvest (e.g., Mayan schedule for corn planting and harvest). The Mayan calendar seems to be the most accurate, but we don't quite understand all its implications because we don't understand their written language. (Almost all of the codex for Mayan language was destroyed by the Spanish clerics).

Most of the calendar form we use today came from the ancient Romans. That's where most of the names of the months come from. Months were made of certain lengths to coincide with either natural astronomical or agricultural cycles or man-made events. We found that our heartbeats averaged 60 per minute, so that became a useful division and were named seconds, etc., etc.

The calendar that came closer to the one we know use was developed after astronomical observations began to be used in the mid 1500s to time those flood and agricultural events. But even as late as American colonial times, the calendar was being adjusted from the Julian to the more modern version. Even so, we still haven't been able to routinely account for the abnormal time span of the leap year event. To handle the issue we put a band-aid on the calendar and proclaim "Leap Years" to make the calendar register the correct time.

Answer 4

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Answer 5

the basis of time is the earth's revoluton and rotation. 1 year is a revolution and one day is a rotation.We have 24 hours because there are 24 different time zones. Each time zone has its own time.For example the time on the first time is 1:00a.m. the second is 2:00a.m. so on and so forth.

Answer 6

the 12 month thing is called the Gregorian Callendar (they were monks i think). Originally, months were from Roman Gods, Mars=march, Juno=June and August=augustus Caesar.
October, November, and December were originally the eighth ('oct'), ninth ('non'), and tenth ('dec') ones.

dunno about the rest tho...
Oh, days of the week are Norse I think - Thursday=Thor's day, Wednesday = Woden's day....


DG IS a prat

Answer 7

actually, you've put the question a bit too simply...

firstly, it wasn't one person that decided all of this.... the measurement of time as we know it is the result of millenia of astronomical research.... modern measurements have been derived by mixing up many different calendars and results, eliminating the faults of each....

as to when it started, there's no definite date.... sometime about 10,000 years ago in ancient Egypt I think....

Answer 8

WOMEN....they decided on time, note the subtle difference between male and female time....note male 2 minutes = 2 x 60 seconds....female 2 minutes 2 x an infinately changing number, known only to her....

Answer 9

It all started about 4.5 billion years ago when our Solar System was being formed.

See, this is what happens when you trust 'God' to set things up. All of the measurements end up incommensurate and all screwed up, none of the units match up, and nothing fits quite exactly 'right'.

Doug

Answer 10

well in our house my wife decides what time is and who has to stick to it! you see her ready in half an hour can really mean 2 / 3 hours etc...