I think you will find that Air Nauru operate to a standard that is far more impressive and practical than most other airlines, re sign on, sign off.
Obie. In the 11 years I flew with the company, in the 70/and 80's, there was never any push by Air Nauru management for on time arrivals or departures.
Although crews tried hard to stick to the schedules, it was rarely possible due the Pacific way of life. Of course there was no competition on the routes we flew and that was a big factor for a relaxed approach to keeping on schedule. Mostly Air Nauru had very experienced pilots and that helped in the exemplary safety record which I believe still applies.