Body clock affects a subject in the following ways:
- The subject's need for sleep is reduced. For every hour that a subject sleeps, he is as refreshed as if he slept 10 hours. For every two hours that a subject sleeps during the spell (20 hours of rest), he regains hit points as if he spent a day of complete rest. However, wizards are not able to memorize spells; "real" time must pass for this to occur.
- The subject's need to breathe is reduced. He breathes only 10% as often as normal for the duration of the spell, enabling him to hold his breath 10 times longer than normal and use less air in enclosed situations.
- The subject can set an internal "alarm clock" to alert him when a specific amount of time has passed. The subject then hears a brief ringing in his ears, audible only to him. The ringing is loud enough to wake the subject. He can set as many internal alarm clocks as he wishes, as long as they all occur within the duration of the spell.
The spell has no effect on movement, spellcasting, or any other normal activities.
The material components are a kernel of corn, a drop of water, and a stoppered glass bottle.
Notes: Common for priests with major access to the sphere of Time.