why is the hour contains of 60 min but not 100 min, and why is the week consist of 7 days?
105036
Earth revolves around this shinning star called a sun and it takes about 365 to 366 days to make a round trip around the sun.\n\n60 minutes and not 100 minutes --> Ever looked at a globe and the time zones? \n\nweek consists of 7 days --> Again with the Earth revolving around the sun.
1078305
It is 7 for me. Like the days of the week.  \nIn greek mythology, 7 is connected with goddess' Athena's  birth from Zeus' head.\nIn my reality, the 7th day is Sunday and it is lucky because it is day off for me!\n\nKaterina
10346
60-100 times a minute.
298230
The week between March 26 and April 2 is very unusual - France is 7 (!) hours ahead of NYC. The reason - Europe is switching to the daylight saving time before U.S.\nAfter April 2 the difference between NYC and France will become 6 hours agai.
591230
I COULD SIT HERE AND ASK YOU WHY THERE ARE 7 DAYS IN A WEEK, WHY 24 HOURS IN A DAY, WHY WE DON'T WORK 2 OR 3 DAYS AND HAVE 4 OR 5 DAYS OFF. TELL YOU THE TRUTH I COULDN'T BEGIN TO TELL YOU WHY WE DO THE THINGS WE DO.
1058390
Every week contains six days.\n\nSince six is less than seven, any time that something has seven, it has to also contain six.\n\nIf there are seven marbles in a box - you can also reach in and only pull out six.
667841
It is based on the rotation on the earth. Explaining it is too much for a yahoo answer, so the following wikipedia articles will explain this. \n\nThe second wikipedia article explains the 'french' decimal time, in which units of time are divided into slots of 10 each. This is also a lenghtly but comprehensive answer.
349021
Because a 24 hour period is a day, it's simple to refer to the days of the week as Monday, Tuesday etc.  The first part of the name does have meaning of some sort, though I'm not sure what, I think some of this goes back to the Ancient Roman era.
339526
60 seconds in minute\n60 minutes in an hour\n\nTherefore, 3600 seconds in an hour
482257
7 Innings, and the time depends on how long each inning is
350957
it just has to do with our calender, there is always going to be the same days in november and march, bcause it is a constant. there are always the exact same number of days between mar and nov, and its devisible by 7, no weird things, just math, if we made weeks 6 or 8 days long, some other month would logicaly have the same days.
1066451
2.15 hours per bi-weekly period.\n\n7 days = 56 hours\n26 bi-weekly periods per year.\n56 divided by 26 = 2.15 hours
480279
because it relies to the events which can't be measured metrically anyway. Weeks follow the approximate lunar circle, there's 365 days in a year etc.\n\nalso, imagine we would divide a day into 100 hours. 1 hour would last only 14 minutes, which would be way too few and confusing. \nIf we divided a day into 10 hours, an hour would last 2 hours and 64 minutes. this would probably be too long, and we wouldn't have enough hours to properly determine a time of day...\n\nAn hour was determined as 1/4 of the time when the shadow of a pole travels a 60 degree angle or something... i THINK. I might be wrong on this, high school phisics is a LONG time ago. \nAnyway, it was old Sumerians or Babilonians who determined it like that and ever since it wasn't changed. We're too used to these units now, we can't just change them without causing a massive MESS :D
634373
I think he meant to ask why a day is divided into 24 and not 36 or 48.  The actual time would be the same but there would be short intervals.  A half hour would end up being an hour.  Why divide a circle into 360 or an hour into 60.  \n\nHour :- "a traditional unit of time, equal to 60 minutes, or 3600 seconds, or 1/24 day. The custom of dividing the daylight into 12 hours goes back at least as far as the Babylonians, who liked to divide units by 12 because groups of 12 are easily divided into halves, thirds, or fourths. Originally an hour was 1/12 of the time between sunrise and sunset, so summer hours were longer than winter hours. Later, when people wanted to express times at night, it was natural to divide the night into 12 hours as well, making 24 hours in the day. Only after the invention of mechanical clocks, around 1300, did hours became equal intervals marked by clocks. The word comes from an ancient Greek word hora which originally meant a season, especially a religious season, and hence a "defined" period of time. In the Christian church hora came to mean one of the services held at seven specific times during the day, thus establishing the word as marking subdivisions of the day." \n\n\nhttp://mathforum.org/library/drmath/view/58460.html
468933
60 secs= 1 min\n60 mins= 1 hour\n600 secs= 10 mins
692993
7.5 hours per day, equaling 37.5 hours per week (unless otherwise stated by your employee union).
319041
2 days. \nOlder ones are a week.