instruction: how many hours has elapsed since patient 025-50213 stayed in ward 927 for the last time in the in their current hospital encounter?
response: SELECT 24 * (STRFTIME('%j', CURRENT_TIME()) - STRFTIME('%j', patient.unitadmittime)) FROM patient WHERE patient.uniquepid = '025-50213' AND patient.wardid = 927 AND patient.hospitaldischargetime IS NULL ORDER BY patient.unitadmittime DESC LIMIT 1