I suggest you BOTH be very careful with this person's life. And you had better come back and prove you know what you're talking about.
The following are what is required to be reported if you turn yourself in to other than your original duty station, as suggested by one of the idiot twins.
§630.8 Administrative report.
(a) The unit commander administratively classifies an absentee as a deserter and completes DD Form 553 when one or more of the following applies:
(1) The facts and circumstances of the absence, without regard to the length of absence, indicates that the soldier may have committed the offense of desertion, as defined in articles 85 and 86 of the Uniform Code of Military Justice (UCMJ).
(2) The soldier has been AWOL for 30 consecutive days.
(3) The soldier, without authority, has gone to or remains in a foreign country and while in the foreign country has requested, applied for, or accepted any type of asylum or resident permit from the country, or any governmental agency.
(4) The soldier has returned to military control and departs absent prior to completion of any administrative or judicial action for a previous absence.
(5) The soldier escapes from confinement.
(6) The soldier is a special category absentee.
(b) The unit commander promptly reports deserters to the provost marshal via DD Form 553 per AR 630–10, chapter 3.
However, if you turn yourself in now to your own unit, the following is required:
§630.6 Surrender to unit commander.
If an AWOL soldier surrenders to the parent unit the following procedures apply:
(a) The unit commander immediately notifies the Provost Marshal that the soldier has returned.
(b) The provost marshal finalizes the DA Form 3975 and makes a reference blotter entry. The provost marshal forwards DA Form 3975 and 4833 (Commander's Report of Disciplinary or Administration Action) with an appropriate suspense date through the appropriate field grade commander to the unit commander for action.
(c) The unit commander reports action taken to the provost marshal on DA Form 4833 not later than the assigned suspense date.
And although there is no timeframe in the UCMJ to 'magically' turn yourself in, there are other conditions that are required.
Punitive Articles of the UCMJ
“(a) Any member of the armed forces who—
(1) without authority goes or remains absent from his unit, organization, or place of duty with intent to remain away therefrom permanently;
(2) quits his unit, organization, or place of duty with intent to avoid hazardous duty or to shirk important service; or
(3) without being regularly separated from one of the armed forces enlists or accepts an appointment in the same or another one of the armed forces without fully disclosing the fact that he has not been regularly separated, or enters any foreign armed service except when authorized by the United States
Making ASSUMPTIONS that all AWOL soldiers will breeze by with an administrative discharge is not only ludicrous but dangerous to this poster's life and liberty.