Function - Gradually change the time.
#include< mach/mach_host.h>
kern_return_t host_adjust_time
(host_priv_t host_priv,
time_value_t new_adjustment,
time_value_t old_adjustment);
The host_adjust_time function arranges for the time on a specified host to be gradually changed by an adjustment value.
Only generic errors apply.
Functions: host_get_time, host_set_time.
Data Structures: time_value.