How long will the sun last for?
336535
Total life span=8billon+yrs.\nIt may last for another 4.5 billion years.....(and counting)
686543
From the Wiki,\n\n"In about 5 billion years, the Sun will evolve into a red giant and then a white dwarf, creating a planetary nebula in the process."\n\nHumans will probably be long dead before then or will have moved on.  In a few billion years, the sun will get too hot for Earth to sustain life, but it'll be a while before it finally "blows up."  More accurately, it will actually implode and slowly become an inert mass.
970270
it won't be for a long time from now, like 1000s of years, but it will happen.  Planets are basically stars and stars burn out sooner or later.  If it isn't earth that ends first, it'll be the sun that burns out and we can't survive without the sun.
698399
we still have about 4 billion years to go on that\n\nhttp://en.wikipedia.org/wiki/Sun
976309
not millions of years, as the previous answers say.  try about five billion years from now.  at that time, the sun will have used up its supply of hydrogen fuel.  it will try to burn off the helium that now fills its core, and expend so much energy in the process that its outer layers will expand beyond the orbits of mercury and venus, and making earth's surface semi-molten (if it doesn't destroy the planet).  it will thus become a red giant.  as it slowly cools and fades, it will shrink to become a white dwarf, and finally die out as a black dwarf.  hopefully before then, we'll have long since been gone, if we haven't destroyed each other by then.
714257
Well, if the sun exploded, you would live for a few minutes longer.
840496
Scientists say that in 5,000,000,000 years, the sun will suddenly expand, probably all the way to Earth's orbit.  Even if it doesn't come this far, we will be fried. Before then, humanity may end, but Earth will still be here.
1054717
The sun is about 4.5 billion years old and about 1/3 rd the way through it's expected life. Scientists have given us a glimpse of what to expect as the sun ages.\n\n1.1 billion years or so, it will become 10% brighter. This will cause the earth to become super heated, all life will be destroyed and the oceans will boil away. Then in another 6.5 billion years, it will double in brightness and burn its supply of hydrogen fuel in its core. The sun will swell and become bigger than what we see today.\n\nAt around 8 billion years or so, the size will increase to 166 times and reach as far as Jupiter. The color will be red and it will be known as a Red Giant, but once the hydrogen fuel is depleted and the sun has reached the outer regions of Jupiter, it will start to shrink, losing both energy and brightness as it quickly consumes it's helium in  in 100 million years or so..\n\nThen, at around 12 billion years, the sun will eject much of its outer layers and become a smoldering, collapsed core that scientists would call a White Dwarf, but this is not the end, for it has one more transformation. It eventually will become a Black Hole.\n\nIf you would like to see what the sun will look like when it becomes a White Dwarf, go to:\nhttp://www.physorg.com/newman/gfx/news/m2_9_large.jpg
504948
Odds are the world will end in about 5 billion years when the sun explodes.\n\nHumans will probably end much sooner though.
526984
NO, angle of the earth on it's axis limits sunlight for a few months. The days never warm up.
1166435
Yes.  The sun will blow up in about 4.5 billion years, taking the earth with it.  Odds are humans will have been gone long before that though.
303640
for sure when the Sun expands and dies. but that's not for a few billion years.  no worries.
7692
Yes, earth is moving closer to sun every year, and eventually it will get destroyed one day. But still thousands of years are left for this to happen.
758844
Well if it's directly at the sun, then I'd say no more than 10-15 seconds, but if you're just staring, but not exactly directly at it, I'd say roughly around 20-25 minutes.
392956
It's not the length of the second; it's the number of days it takes the earth to go around the sun.  It takes about 365.26 days.  If the second were lengthened, and clocks stayed as they are, eventually it would be dark at noon.
1015108
About 50 million years for energy generated in the Sun's core to reach the sun's surface (the photosphere). (Source provided below.)
205307
Daylight and sunlight are 2 different things. Daylight is obviously sunrise to sunset no matter how dark the sky may be because of clouds, rain, etc. It actually averages a bit more than 12 hours at all locations because of the width of the solar disc and refraction - sunlight bending thru the atmosphere. This adds about 15 minutes to the day at the equator where the sun to a large exent goes straight across the sky. The additional amount can be much greater around the poles though where when the sun is up it sort of circles the sky - more time near the horizon, thus more time the sun is visible (on a flat horizon) despite its actual geometric position being a bit below the horizon). Hope that is clear.\n\nYou probably mean amount of sunlight in a dry climate. That is rather site-specfic - hard to state a general amount.