Possibly, but the answer depends on the immigration benefit.

If the particular benefit requires the filing to occur before the beneficiary turns 21, PA-2026-15 means you cannot automatically rely on the following Monday simply because the birthday falls on a weekend.

However, turning 21 does not automatically end eligibility in every immigration case. The Child Status Protection Act may preserve “child” classification for certain family-based, employment-based, diversity visa, refugee, or asylum beneficiaries. An attorney should first determine whether an actual age-out deadline applies to the case.