H4 visa - length of stay - match H1B visa stamping or I797?

[desiopt1]

Hello,

I had my H1B visa approved in Oct 2017, till May 2020. I had my visa stamping also done with an expiration date of May 2020. Recently, I moved job locations and applied for a H1B amendment. The approval notice I797 for this amendment shows my validity until Dec 2021. I haven't gotten a new visa stamping since.

Now I am filing for my wife's H4 visa. In her DS160 form, should I use May 2020 (my visa expiration date) or Dec 2021 (my latest I797 expiration date) to calculate the intended length of stay?

Thanks

[scientist2016]

Hello,

I had my H1B visa approved in Oct 2017, till May 2020. I had my visa stamping also done with an expiration date of May 2020. Recently, I moved job locations and applied for a H1B amendment. The approval notice I797 for this amendment shows my validity until Dec 2021. I haven't gotten a new visa stamping since.

Now I am filing for my wife's H4 visa. In her DS160 form, should I use May 2020 (my visa expiration date) or Dec 2021 (my latest I797 expiration date) to calculate the intended length of stay?

Thanks

Dec 2021.