Python | time.clock_settime_ns() method

time.clock_settime_ns() method of Time module is used to set the time (in nanoseconds) of the specified clock clk_id. Basically, clk_id is a integer value which represents the id of the clock. This method is similar to time.clock_settime() method which is used to set time of the specified clock clk_id but in fractional seconds.

Syntax: time.clock_settime_ns(clk_id, nanoseconds)

Parameters:
clk_id: A clk_id constant or an integer value representing clk_id of the clock.

Return type: This method does not return any value.

Code: Use of time.clock_settime_ns() method

# Python program to explain time.clock_settime_ns() method

# importing time module
import time


# clk_id for System-wide real-time clock
clk_id = time.CLOCK_REALTIME


# Get the current value of
# system-wide real-time clock (in nanoseconds)
# using time.clock_gettime_ns() method
t = time.clock_gettime_ns(clk_id)

print("Current value of system-wide real-time clock: % d nanoseconds" % t)

# Set the new value of
# time (in nanoseconds) for
# System-wide real-time clock
# using time.clock_settime_ns() method
nanosecs = 10000000
time.clock_settime(clk_id, nanosecs)

print("\nTime  modified")


# Get the modified value of
# system-wide real-time clock (in nanoseconds)
# using time.clock_gettime_ns() method
t = time.clock_gettime_ns(clk_id)
print("\nCurrent value of system-wide real-time clock: % d nanoseconds" % t)

Output:

Current value of system-wide real-time clock: 1568621304462590132 nanoseconds

Time  modified

Current value of system-wide real-time clock: 10000000000180111 nanoseconds

Reference: https://docs.python.org/3/library/time.html#time.clock_settime_ns