Okay i have a follow up question..why are their differences in sunsets/rises times from one day to the next?
959107
Days get shorter and shorter as we move away from the sun.  Longer and longer as we move towards the sun in out orbit.
509348
u might have heard abt latitudes. Sun light constantly falls on earth. as earth moves different past of earth receives light and this is what we term as day and night. Latitudes help in determining times and it takes 15mins for sun to pass from one latitide to another. In other words we have time zones ever heard of green whtch time zone. This way, time is calculated with respect to sunrise and sunset. \n\nThus its all depending on how sunlight reaches in ur region..!
428346
Indiana used to, and still should.  i have lived in 2 different states and and Indiana was one of them, my family still lives there and says that it doesn't get dark now until like 8 30 and some peeps are having trouble getting their kids to sleep while the sun is up.  however where i live now, i can see the reason for the time change.  maybe, not that i know for a fact, but maybe AZ is a state just like Indiana, just in the right place to not change times but change time zones??
932677
That depends on what side you are on. One side is always daytime the other side is always nighttime.
1146317
One question at a time.\n\nThe first one has been answered. Becasue of the earths tilt, countries in the southern hemisphere are closer to the sun in December than the countries in the northern hemisphere - that is why we have winer here (its further away). And when the earth goes around to the other side of its orbit around the sun in July, we in the northern hemisphere are closer, while they are farther. \n\nThis the general rule, however there are many other factors like elevation, precipitation, wind patterns, jet streams, ocean currents etc etc. so yes - every country in the northern hemisphere it is officially summer in july etc. but not necessarily as warm as some other countries can get. and vice versa for the southern hemisphere of course.\n\nAll of us - when we stand up, we are perpendicular to the earths surface no matter where we are. Imagine a ball ... and pins sticking straight out of the ball. This is how we'd look, so to a person on the south POLE, would be upside down to someone on the north POLE. or someone in one area, will be upside to someone else DIRECTLY on the other side the earth's surface. Everyone else will be in varying degrees of "upsidedownness"\n\nDaylight savings time is a pure man made concept. But again ... because of the tilt of the earth, during July etc. the sun shines longer on the northern hemisphere (The days are longer) and the southern hemisphere the days are shorter. This causes the sun to rise earlier and earlier and then after the longest day of the year, it reverses - the days get shorter and shorter. \n\nNow what happens is that you can wake up at 6 am and it still be pitch dark and 7 am it starts to rise and 8 am its fully light. So they change the time to go an hour back (Fall Back) and this allows the time now to be 5 am as pitch dark, 6 am start rise, and 7 am fully light. So for people who wake up at 7 am everyday, the first plan it will be kinda  dark when they wake up but with daylight savings, it will be fully light when they wake up! Thus its just something certain countries do to be able to have light for when most people wake up in the morning - even if you are not a mornig person - about 90% of people wake up at that time to to go to work\n\nHope all this made sense and email me at alxsml@yahoo.com for more clarification.
864564
They're made so the clock corresponds to daylight.  It was convenient to break the world into one-hour zones, which would give you 24.  The zones are determined by state and national boundaries and population concentrations, so they aren't perfectly straight north-south lines.  But the general result is that the sun is always about highest at noon, no matter where you are.  That only leaves the question of how we determine when we move from one day to the next.  That would be the international date line, running down through the Pacific ocean and carefully avoiding almost everything.
253656
Obviously  it appears to rise in the east and set in the west. A little trick to try from anywhere in the world....\nPick a spot you can stand at the same time as often as you can , the same time everyday.  Pick a landmark and make a note where the sun seems to rise in relation to this landmark.  You will be able to track the travel as the sun moves north to south and back again as it rises in the morning.  Email me for more info on this
196749
no, it's because of the rotation of the earth.  Clocks in the southern hemisphere go around the other direction, like your toilet ;-).\n\nIt's because the shadow on a sun dial in England goes around that direction.
249560
i would like to give u this info. : in any country , the summer time begin just after the difference between the dead point of sunrise in winter , then add 60 min. to that time , chk what will be the date of sunset ( +60 min) , then the coming sun. is the date.
612436
It's all to do with the angle of the earth.  It doesn't sit in an upright position, rather it reclines at and angle of 23 degrees.  It also rotates around the sun once a year which means that at times parts of the earth are pointing towards the sun and other parts are pointing away.\n\nThe further north or south you go the more pronounced the difference in daylight hours is.  For example, if you venture into the Arctic Circle (within 23 degrees of the pole) you can have 24 hour daylight during the summer months and 24 hours darkness during the winter months.\n\nBecause India is closer to the equator the difference in sunrise and sunset times is less variable than it is in Australia or the UK.  In the UK for example at this time of year it's daylight up until about 10PM but during the winter months it's dark by 4PM.
873743
High tides get higher and low tides get lower.\n\nIf I'm not mistaken... this is what happens at the times of the equinoxes.... the sun and moon line up... pulling the tides to higher highs and lower lows...
1066168
they understand the concept of time the same way we do, they just have diffrent time zones so they have their times diffrent then us. What i mean by that is that while its 9 here it might be 4 there (not sure if thats the exact diffrence) because of the way the earth revolves around the sun.
950189
You did meant to say "months" twice, right?  Because moths and months are slightly different things.\n\nAnyway, the difference is caused by how close the earth is to the sun (during its orbit around the sun.)  When the earth spins each day, it turns from day to night because the earth is facing the sun for half of the turn (roughly) and facing away for the other half (causing day and night.)  But depending on the orbit, the sun hits the earth differently.\n\nThe sun in fall and winter is more direct, I mean, like it hits you in the face.  It's, um, slanted differently.  But the light is weaker since the part of the earth that's having cold weather is tilted further from the sun.  Did I mention that the earth is tilted?  So that way, one hemisphere is tilted closer to the sun during one side of the orbit, and the other hemisphere gets the seasons during the opposite time of year (other side of the orbit.)  \n\nOK, like imagine that this percent mark % represents the northern and southern hemispheres.  Imagine that the % mark is traveling in a circle around a central sphere.  So on one side of the circle, the upper 0 is tilted toward the sun (spring and summer) and the lower 0 is on the other side of the tilted line and it's further from the sun.  But when the % gets to the other side of the circle, the *upper* 0 is on the far side of the tilted line and then the *lower* 0 is closer to the sun.  Which gives you seasons.\n\nI guess it gets lighter and darker faster because there's less clouds in fall and winter (it's colder, so there's less smog and haze and cloud cover in general) so dawn and dusk seem to happen faster.  Plus, there's less light and heat in general.  \n\nI hope that made sense.  The % thing makes sense to me, but if it doesn't, then make yourself a 3D model and see if it makes sense.
476278
I've never found that, but I have found that at Daylight Savings Time, it will change.  It doesn't even sound plausible, but it always works like that. I'm really not sure why, but my mom and best friend have the same problem.  Who knows.
372910
When the sun is setting, the position of it results in a mixture of reds, oranges and yellows.  This is because those particular wavelengths are refracted less and therefore seen.  As a result, the other wavelengths (green, blue, indigo, violet) are not seen.  This is also the case in sunrises but sunsets are more brilliant because there are more particles in the air at this time of day (dust, pollution, dirt).  The increase in "substance" in the air results in refraction of ROY to increase.  \nThe dominance of the other three wavelengths (BIV) or (ROY) are seen more as apposed to green.  Remember, when you see color in the sky (either reds, oranges and yellows during sunset/sunrise or blues during midday) this is a mixture ,  so the "in between" wavelength, green, is overridden. \nHowever, there are occasions when you can see green in a sunset for a short period of time.  This is known as "a green flash."  You can read on about this rare phenomenon at: http://hyperphysics.phy-astr.gsu.edu/HBASE/atmos/redsun.html
219990
They built observatories.  They were not like the ones we have today, but the marked where and when certian things would happen.  The idea is simple, though its often lost with modern people: The sun doesnt rise in the same place each day.\n\nThe pivotal dates are Dec 21, Mar 21, June 21 and Sept 21.  On december 21, the sun will rise as far to the south that it can (the solstice). Where I live, we only have 8-9 hours of sunlight then.  As the new year progresses, then the sun will rise further north.  On Mar 21, its half way on its trip and we have 12-hrs of sun (the equinox).  On June 21 then the sun is as far north as possible at sunrise (the solsitce) and then it turns back around. Of course on Sept 21 we have 12-hr days again and the cycle continues.\n\nPeople would just make a place to sit with rocks all around in a circle.  Where the rocks were showed when these dates were near.
556307
I think what you're looking for is the "equation of time", which is the difference between local mean time and local apparent time.  The term "difference" is used because "variance" has a very specific mathematical meaning.   Local apparent time is determined by the position of the sun in the sky.  local mean time is based on Greenwich Mean Time.  The difference occurs because GMT is based upon a fixed rotational rate, and local apparent noon is determined is by the maximum altitude of the sun in the sky.\n\nThe two time scales differ by as much as 15 minutes.  The web page below has more details.\n\nThere are formulas for this, but they are complex calculations.  The equation of time changes constantly, although the change is very slow, so a graph of the difference in 1980 is still mostly correct for 2006.  You'll be accurate to within a few seconds.