Neutrino provides the full set of POSIX clock functionality. Therefore, time may be measured in nanosecond, as well as, in second.
Moreover, QNX also provides several non POSIX clock functions: ClockAdjust() and ClockCycle().
The posible clock types are:
CLOCK_MONOTONIC: This POSIX clock always increase at a constant rate and can not be adjusted.
CLOCK_SOFTTIME: The same as CLOCK_REALTIME, but if the CPU is in powerdown mode, the clock stop running.
CLOCK_REALTIME: A clock that mantains a ystem time.
It is importan to know that valid dates on a QNX system range from January 1970 to January 2554, and note that POSIX may be limited to the year 2038.