What kind of visa do you have? Family visit visa? On arrival visa?
Haya visa.
For family visit visa you must stay 180 days outside of the Qatar once you complete 3 months (before it was six months) stay you can extend this stay, now in these days moi Qatar extending for 3 more months. Hayya card visa is valid till January 10, 2024.
On arrival you can come that is only for one month stay and can be extended on different reasons base for one more month.