Program processing is suspended for <time> seconds. The value of <time> need not be an integer. If <time> is a double-precision value, it is rounded to single-precision. If <time> is less than approximately 0.0000023, the program resumes execution immediately. If <time> is larger than this value, then the number of seconds that the program is suspended is the smaller of <time> and 164,925 seconds (approximately 45.8 hours).

Depending on the amount of multiprocessing being performed and the priorities of other programs in execution, the actual time that a program is suspended can vary widely with respect to <time> but is at least <time> seconds.