Tempus Fugit

5th level illusion

Casting Time: 1 action

Range: 10 ft. radius

Components: V, S, M (a vial of sand)

Duration: 1 hour

When you cast this spell, any creature within the area feels and acts as if time has sped up for them. For every round that passes outside the range of the spell, the creatures inside experience 4 rounds. The creatures can take actions, heal, and so forth at four times the rate of the outside world.

They must also eat, rest, and so forth and four times the rate. A creature that enters the range of the spell while it is in progress experiences the time dilation as well.

At higher levels. If you cast this spell using a spell slot of 6th level or higher, you can increase the duration of the illusion. For each level above 5th, the duration triples so that using a 9th level spell slot, the duration is 81 hours.