Time related item (for slowing down time)

An item that slows time. This would be crafted using a potion of slowness and a clock, it would have 50 durability and when used it would slow time to 10% of its current speed for five minutes (the same as its cooldown time), when I say "its current speed" I mean that if the player has multiple of these items they could slow time further while time is already slowed. This would only affect the day/night cycle and entities that aren't spawned by the player during the timer that timer is slowed, meaning that a player could use a bow before using this item and after using the item it would appear to be moving slowly, but if the player used a bow while timer was slowed that arrow would appear to be moving at normal speed. If an entity touches anything that is under the effects of this item, that entity will also become affected by the item. Also, this could be useful for fighting bosses, for instance with the wither you could slow down time to be able to more easily avoid its exploding skulls and to have more time to hit it before it starts regenerating its health, it could also just be fun to watch things happening in slow-motion, but due to its low durability and the fact that the materials required to make it are somewhat hard to obtain it wouldn't be used too often, and would only be used when it's truly needed.