Python | time.clock_gettime_ns() method Last Updated : 17 Sep, 2019 Comments Improve Suggest changes Like Article Like Report Time module in Python provides various time-related functions. This module comes under Python’s standard utility modules. time.clock_gettime_ns() method of Time module is used to get the time (in nanoseconds) of the specified clock clk_id. Basically, clk_id is a integer value which represents the id of the clock. Following are the constants available on UNIX platforms that can be used as value of clk_id parameter: clk_id clk_id constant Meaning 0 time.CLOCK_REALTIME System-wide real-time clock 1 time.CLOCK_PROCESS_CPUTIME_ID High-resolution per-process timer from the CPU 2 time.CLOCK_MONOTONIC It represents monotonic time since some unspecified starting point 3 time.CLOCK_THREAD_CPUTIME_ID Thread-specific CPU-time clock 4 time.CLOCK_MONOTONIC_RAW Similar to time.CLOCK_MONOTONIC, but provides access to a raw hardware-based time that is not subject to NTP adjustments Syntax: time.clock_gettime(clk_id) Parameter: clk_id: A clk_id constant or an integer value representing clk_id of the clock. Return type: This method returns a float value which represents the time in nanoseconds of the specified clock clk_id. Code #1: Use of time.clock_gettime_ns() method Python3 # Python program to explain time.clock_gettime_ns() method # importing time module import time # clk_id for System-wide real-time clock clk_id1 = time.CLOCK_REALTIME # clk_id for monotonic clock clk_id2 = time.CLOCK_MONOTONIC # clk_id for monotonic (Raw hardware # based time) clock clk_id3 = time.CLOCK_MONOTONIC # clk_id for Thread-specific CPU-time clock clk_id4 = time.CLOCK_THREAD_CPUTIME_ID # clk_id for High-resolution # per-process timer from the CPU clk_id5 = time.CLOCK_PROCESS_CPUTIME_ID # Get the time (in nanoseconds) of the above # specified clock clk_ids # using time.clock_gettime_ns() method t1 = time.clock_gettime_ns(clk_id1) t2 = time.clock_gettime_ns(clk_id2) t3 = time.clock_gettime_ns(clk_id3) t4 = time.clock_gettime_ns(clk_id4) t5 = time.clock_gettime_ns(clk_id5) # Print the time (in nanoseconds) of # different clock clk_ids print("System-wide real-time clock time: % d nanoseconds" % t1) print("Monotonic clock time: % d nanoseconds" % t2) print("Monotonic (raw-hardware based) clock time: % d nanoseconds" % t3) print("Thread-specific CPU time clock: % d nanoseconds" % t4) print("Per-process timer from the CPU: % d nanoseconds" % t5) Output: System-wide real-time clock time: 1568588052857445167 nanoseconds Monotonic clock time: 13129927039288 nanoseconds Monotonic (raw-hardware based) clock time: 13129927039811 nanoseconds Thread-specific CPU time clock: 27169892 nanoseconds Per-process timer from the CPU: 27171779 nanoseconds Code #2: Using an integer value as parameter of time.clock_gettime_ns() method Python3 # Python program to explain time.clock_gettime_ns() method # importing time module import time # value of clk_id for time.CLOCK_REALTIME # clock id constant which represents # System-wide real-time clock is 0 clk_id1 = 0 # value of clk_id for time.CLOCK_MONOTONIC # clock id constant which represents # a monotonic clock is 2 clk_id2 = 2 # Get the time in nanoseconds) # for the specified clock clk_ids # using time.clock_gettime_ns() method t1 = time.clock_gettime_ns(clk_id1) t2 = time.clock_gettime_ns(clk_id2) # Print the time in nanoseconds print("System-wide real-time clock time: % d nanoseconds" % t1) print("Monotonic clock time: % d nanoseconds" % t2) Output: System-wide real-time clock time: 1568588180971305067 nanoseconds Monotonic clock time: 13258040899143 nanoseconds Reference: https://docs.python.org/3/library/time.html#time.clock_gettime Comment More infoAdvertise with us Next Article Python | time.clock_settime() method I ihritik Follow Improve Article Tags : Python python-utility Practice Tags : python Similar Reads Python Time Module In this article, we will discuss the time module and various functions provided by this module with the help of good examples. As the name suggests Python time module allows to work with time in Python. It allows functionality like getting the current time, pausing the Program from executing, etc. S 7 min read Python | time.asctime() method Python time method time.asctime() is used to convert a tuple or a time.struct_time object representing a time as returned by time.gmtime() or time.localtime() method to a string of the following form: Day Mon Date Hour:Min:Sec Year For example: Thu 08 22 10:46:56 2019Python time asctime() Syntax: ti 3 min read Python time.pthread_getcpuclockid() Function The pthread_getcpuclockid() function returns the clock id of the thread-specific CPU-time clock for the specified thread_id. The thread ids are obtained from the different threads that are running being used by that program. The thread ids can be obtained using the 'ident' field of the threading cla 2 min read Python | time.clock_getres() method Time module in Python provides various time-related functions. This module comes under Pythonâs standard utility modules. time.clock_getres() method of Time module is used to get the resolution or precision of the specified clock clk_id. Basically, clk_id is a integer value which represents the id o 3 min read Python | time.clock_gettime() method time.clock_gettime() method of Time module is used to get the time of the specified clock clk_id. Basically, clk_id is a integer value which represents the id of the clock. Following are the constants available on UNIX platforms that can be used as value of clk_id parameter: clk_id clk_id constant M 3 min read Python | time.clock_gettime_ns() method Time module in Python provides various time-related functions. This module comes under Pythonâs standard utility modules. time.clock_gettime_ns() method of Time module is used to get the time (in nanoseconds) of the specified clock clk_id. Basically, clk_id is a integer value which represents the id 3 min read Python | time.clock_settime() method time.clock_settime() method of Time module is used to set the time (in seconds) of the specified clock clk_id. Basically, clk_id is a integer value which represents the id of the clock. Syntax: time.clock_settime(clk_id, seconds) Parameters: clk_id: A clk_id constant or an integer value representing 1 min read 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_ 2 min read Python - time.ctime() Method Python time.ctime() method converts a time in seconds since the epoch to a string in local time. This is equivalent to asctime(localtime(seconds)). Current time is returned by localtime() is used when the time tuple is not present. Syntax: time.ctime([ sec ]) Parameter: sec: number of seconds to be 2 min read Python | time.get_clock_info() method Time module in Python provides various time related functions. time.get_clock_info() method in Time module is used to get the information on the specified clock name. This method return the information as a namespace object. The name of supported clocks and the method used to read that clock value a 2 min read Like