It’s not well-reported elsewhere, but Sergeant Bergdahl’s pleas of guilty to desertion with the intent to shirk important service and avoid hazardous duty in violation of Article 85(a)(2), and misbehavior before the enemy in violation of Article 99, included exceptions and substitutions limiting his desertion to only a single day.
An Army press release available here explained that:
Sgt. Bergdahl entered pleas of guilty to both charges, but indicated his period of desertion was for only one day. Following the entry of pleas, the government introduced evidence in support of the position that the period of desertion was for the entire period of Sgt. Bergdahl’s captivity. The military judge found Sgt. Bergdahl guilty of both charges with a one day period of desertion. The military judge also denied a defense motion to dismiss one of the charges as excessive, but announced he would combine both charges for sentencing purposes.