User blog comment:Quiksilvr/The date-time synchronisation error and what you can do about it/@comment-26793627-20150807234848

And yes, before anyone else points out, yes, the reserve time can be used to refill your drive as well. Also, it's an insignificant detail but since I found no mention of it elsewhere on Wikia, here it is. Each bar of drive takes 18 min to fill up, or 2 for instant refill.