20 minutes.

* As a temporary countermeasure, the time the next airship exploratory mission will be available for the ship which was used to enter “The Diadem” from your Company Workshop’s Flight Control Panel has been changed from 20min to 5min.
The three issues above were resolved in the Emergency Maintenance which occurred from Nov. 16, 2015 10:00 p.m. to Nov. 17, 2015 12:45 a.m. (PST).