If you are a US citizen, there is no law regarding this. You can stay out of the US for as long as you wish, you will never lose your citizenship and can return anytime you want, as long as you can prove you are a citizen.
What is the maximum amount of time a canadian citizens can stay in the US with valid passport?
Lifespan
Maximum time of Day in solar syatem is VENUS, Minimum JUPI..
8 years
60days
the amount of time spent at your destination.
10 minutes
A DPOA is valid until the death of the principal.
1 year in Florida
Using the green card and passport you can travel abroad provided the stay outside US is for a maximum period of 180 days. If you plan to stay for more period of time you should file for reentry permit which is valid for 2 years to reenter US using immigration form I-131 travel document. After a year as a green card holder if for work or any purpose you need to stay outside US you can preserve your residence in US for naturalization purposes later.
you have to stay outside in the summer for a long time.
It means the length of time a product will last, or stay fresh.