gettime

问题 I'm attempting to create a simple python function which will return the same value as javascript new Date().getTime() method. As written here, javascript getTime() method returns number of milliseconds from 1/1/1970 So I simply wrote this python function: def jsGetTime(dtime): diff = datetime.datetime(1970,1,1) return (dtime-diff).total_seconds()*1000 while the parameter dtime is a python datetime object. yet I get wrong result. what is the problem with my calculation? 回答1: One thing I feel

问题 I'm attempting to create a simple python function which will return the same value as javascript new Date().getTime() method. As written here, javascript getTime() method returns number of milliseconds from 1/1/1970 So I simply wrote this python function: def jsGetTime(dtime): diff = datetime.datetime(1970,1,1) return (dtime-diff).total_seconds()*1000 while the parameter dtime is a python datetime object. yet I get wrong result. what is the problem with my calculation? 回答1: One thing I feel

问题 I'm a beginner at python, trying to make this code work which was provided by someone else. This code queries the API for alerts and send it over to the syslog server periodically. The error I'm getting seems to be related to the time function. Pasted below the line in the code that is generating the error. Traceback (most recent call last): File "/Users/arunlingamariyappa/Documents/API/PythonAPI.py", line 182, in <module> main() File "/Users/arunlingamariyappa/Documents/API/PythonAPI.py",

问题 Calendar c = Calendar.getInstance(); System.out.println(c.getTime()); c.set(2007, 0, 1); System.out.println(c.getTime()); Output: Tue Sep 12 12:36:24 IST 2017 Mon Jan 01 12:36:24 IST 2007 But, When I use the same code in a different environment, Output changes to below: Output: Tue Sep 12 12:36:24 IST 2017 Mon Jan 01 12:36:24 GMT 2007 FYI, I tried to print the timezone of the calendar instance, before and after setting the values and both are in "IST". I want to know the root cause of this.

问题 i came across a strange behaviour of iOS 8.2 safari while converting datetime strings to unix ms timestamps during DST transition. Let's say we have js code function date2unix(dates){ var len = dates.length; var result = [], arr; while(len--) { arr = dates[len].split(/[- :]/); result[len]= (new Date(arr[0], arr[1]-1, arr[2], arr[3],arr[4],arr[5]).getTime()); } return result; } var dates = ["2015-03-29 00:00:00","2015-03-29 00:15:00","2015-03-29 00:30:00","2015-03-29 00:45:00","2015-03-29 01

问题 In my project I'm using struct timespec as follows struct timespec start, end; clock_gettime(CLOCK_REALTIME,&start); /* Do something */ clock_gettime(CLOCK_REALTIME,&end); It returns a value as ((((unsigned64)start.tv_sec) * ((unsigned64)(1000000000L))) + ((unsigned64)(start.tv_nsec)))) Can anyone tell why we are using the unsigned64 format and also help me understand this structure in detail?? I'm using this code in my study about time calculation in nanoseconds precision for the code

问题 I am using a Zynq chip on a development board ( ZC702 ) , which has a dual cortex-A9 MPCore at 667MHz and comes with a Linux kernel 3.3 I wanted to compare the execution time of a program so first a used clock_gettime and then used the counters provided by the co-processor of ARM. The counter increment every one processor cycle. ( based on this question of stackoverflow and this) I compile the program with -O0 flag ( since I don't want any reordering or optimization done) The time I measure

问题 I'm writing a simple program, which checks if elapsed time is more than 1 seconds. I take start time with a clock_gettime(), then I call sleep(5), take new time and I check if the difference is bigger than 1; I sleep 5 seconds, then it should be greater than 5, but my program prints a strange result. this is the code: #include <stdio.h> #include <stdlib.h> #include <time.h> #include <unistd.h> int main() { struct timespec tv1,tv3,expected; struct timespec nano1; tv1.tv_nsec = 0; tv3.tv_nsec =

问题 I'm writing a simple program, which checks if elapsed time is more than 1 seconds. I take start time with a clock_gettime(), then I call sleep(5), take new time and I check if the difference is bigger than 1; I sleep 5 seconds, then it should be greater than 5, but my program prints a strange result. this is the code: #include <stdio.h> #include <stdlib.h> #include <time.h> #include <unistd.h> int main() { struct timespec tv1,tv3,expected; struct timespec nano1; tv1.tv_nsec = 0; tv3.tv_nsec =

问题 I'm working on learnyounode module 13 right now. In the hints section it claims "Date#getTime() will also come in handy." I looked up the Date object and found the getTime method, but what does it mean when there's a hash instead of a period? 回答1: This is just a refference to getTime method of Date object. It is normal syntax when you talk about documentations. According to EcmaScript specification it returns this time value (the number of milliseconds since 1 January 1970 00:00:00 UTC.). 来源：