How long do photons live not in a vacum?

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How long do photons live not in a vacum?
 
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It depends very much on the material of the "not vacuum", also on the energy of the photons.
 
But if the photons are going the speed of light shouldn't they never die since they are going the speed of light which is time?
 
Never mind i was able to find my answer.
 

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