Abeyance

From gronkfinder

Abeyance is a demiplane created by the chronomancer Etyad the Timemaker to serve as her home and workshop. Etyad is the only resident of the highly unusual demiplane, though she will accept an audience with any who gain access to the plane in order to seek her expertise.

Abeyance has the appearance of a massive yet intricate glass and bronze hourglass, thousands of feet tall - besides the contents of the hourglass, there is nothing else in the demiplane. Between the two halves of the hourglass, at the midpoint, lies a glass sphere roughly sixty feet across. This sphere serves as Etyad's living and working space, full of magical items in varying states of completion. Around the glass sphere sand flows between the two halves, visible to those inside.

The hourglass takes an entire day for all the sand to fall to the bottom, after which point it automatically flips and the process begins again. Time is fluid and malleable in Abeyance, and a day might have the length of a minute in the Material Plane or many weeks, following Etyad's whims.