How long can I apply for naturalization after getting a green card in the United States?

Naturalization conditions of American immigrants.

Living in the United States for more than 5 years as a permanent resident means getting a green card for 5 years.

Within the five-year residence requirement, the applicant can leave the United States for a short period of time, but

(1) The applicant's stay outside the United States cannot exceed 1 year or 1 year, because this will interrupt your residence record, that is, you must re-establish your residence record and recalculate it from the time you return to the United States this time;

(2) During the five-year period, the total residence time outside the United States must be less than 30 months, and the comprehensive requirement for the residence time outside the United States for a citizen spouse applicant is less than 18 months;

(3) During the above-mentioned five-year residence period, if the applicant has been away from the United States for more than six months and less than 1 year, he must submit a certificate stating that his residence in the United States has not been interrupted during this period.