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We don't know.
Hydrogen is a proton and an electron. Electrons are fundamental and, as far as we know, cannot decay. Protons are not fundamental and some theories predict that they could decay, but experiments looking for proton decay have determined that, if it does happen, it cannot happen with a half-life of less than 10^34 years. That is ten thousand million million million million million years. If hydrogen goes away via proton decay, it is going to be around for a VERY long time and possibly forever.
If it's the Big Rip ... well, again, we don't know. There's a certain parameter in an equation which is very close to -1, the timing of the Big Rip (and hydrogen will be one of the very last things to go, just before protons themselves) depends on exactly how close it is to one. The closer it is to one, the longer before the Big Rip; if it's exactly one (which is a possibility) the Big Rip will never occur. A sample calculation with it set at about -1.5 ... that is, not at all close to -1 ... gives at least 22 billion years before there's no more hydrogen.
In either case, it's long enough that it's not something that you will ever need to worry about personally.
What else can I help you with?
How long does a hydrogen car last?
Who knows as there are no hydrogen cars in production.
How long is hydrogen going to last on earth?
Forever. Hydrogen can be created from water.
How long does hydrogen peroxide last before it expires?
Hydrogen peroxide typically lasts for about 1 to 3 years before it expires.
How long does deuterium last?
Deuterium can last for billions of years. It is a stable isotope of hydrogen commonly found in abundance in nature and is not radioactive. It is a key component of heavy water and is used in various industrial and scientific applications.
How long does diluted hydrogen peroxide last before it loses its effectiveness?
Diluted hydrogen peroxide typically lasts for about 6 months before it loses its effectiveness.
How long will the suns hydrogen last in seconds?
Total time about 10 billion years = 3.1556926 × 1017 seconds
What type of fuel will never run out?
none, hydrogen will last a very long time, easily to the end of human life, but it will eventually run out
Most lipids contain long chains of which two atoms?
carbon and hydrogen
There is enough hydrogen fuel in the sun to last?
5 billion years.
How many years will the hydrogen in the suns core last?
millions of years
Why does stride last long?
WHY DOES STRIDE LAST LONG
How long does a stroke last for?
how long does a stroke last
