Oni said:feel free to house rule it if you wish, but they seem to read as though the save the current state of the item no matter what it is as they go in the gloves. If that current state includes magical effects then that should be saved just as being on fire is. There is nothing to indicate that the clock on spells should continue to run, but on the other hand it mentions that it stores things in stasis. So zero indicators that spells durations continue, one indication that they stopped until the item is brought back out of the gloves.
It will take more than an interpretation of "stasis" to convince me they intended to give such a cheap magic item the ability to delay spell durations cast on stored objects. If this was the intention, I believe they would have more clearly stated this. For example, by saying something like, "the time spent stored in the glove does not count towards the duration of any spells that were cast on the object prior to being stored." Barring errata similar to this, I would say that spell duration continues as normal while an object is stored. Either that, or increase the cost of the glove significantly.