milliseconds

问题 I'm trying to get the system time accurate to milliseconds in Windows cmd. I know that it's possible to get centisecond accuracy using: echo %time% I've found other questions that are asking the exact same thing but there is no answer that fully answers the question. Here is what I've found so far: This solution is only good for centisecond accuracy (same as what I described above): Print time in a batch file (milliseconds) This solution provides a timer solution but not a print current

问题 I'm a little confused using the DateTime related class for Java SE 7 and 8 API's, for displaying the current time, I'm reviewing the multiple ways for get the system's current datetime. My question is : Which one is more accurate for displaying time in millis? Next is the code snippet, I'm using Java 8 for the reviewing. import java.time.Instant; import java.util.Calendar; import java.util.Date; public class CurrentTimeValidationDemo { public static void main(String[] args) { Instant now =

问题 I'm a little confused using the DateTime related class for Java SE 7 and 8 API's, for displaying the current time, I'm reviewing the multiple ways for get the system's current datetime. My question is : Which one is more accurate for displaying time in millis? Next is the code snippet, I'm using Java 8 for the reviewing. import java.time.Instant; import java.util.Calendar; import java.util.Date; public class CurrentTimeValidationDemo { public static void main(String[] args) { Instant now =

问题 I apologize if this has already been discussed. I have a clip duration in a string: 00:10:17 I would like to convert that to value in milliseconds. (Basically 617000 for the above string) Is there some API that I could use to do this in one or two steps. On basic way would be to split the string and then add the minutes, seconds and hours. But is there a shorter way to do this? Thanks. 回答1: Here is one own written possible approach(assumption of same source format always) String source = "00

问题 I am parsing dates (got from server) in Java using this pattern: "yyyy-MM-dd'T'HH:mm:ss.SSS" . Incoming strings may be of these types: 2015-01-01T00:00:00.561 2015-01-01T00:00:00.5 My question is about milliseconds fraction. I am having trouble figuring out whether the .5 in the second string is 5 or 500 ms. Because when I parse it using my pattern I get 500 ms. Seems OK, but need to double check if there is any common contract to trim those zeros on server side. I would not ask if server

问题 I would like to create a timestamp in milliseconds from the input '2016-03-22 14:30'. Also the timezone specified should be Australia/Sydney. I've tried different approaches but none seem to be working. Can anyone help me please? I'm really struggling with that. 回答1: Pretty self explanatory code, so I wont say much. date_default_timezone_set('Australia/Sydney'); // set timezone $yourdate = '2016-03-22 14:30'; $stamp = strtotime($yourdate); // get unix timestamp $time_in_ms = $stamp*1000; If

问题 For an upcoming project with node.js I need to perform various housekeeping tasks at periodic times. Specifically some tasks every millisecond, others every 20 ms (50 times per second) and still others every second. So I thought about using setInterval(), with funny results: many function calls were being skipped. The benchmark I used is as follows: var counter = 0; var seconds = 0; var short = 1; setInterval(function() { counter ++; }, short); setInterval(function() { seconds ++; log(

问题 For an upcoming project with node.js I need to perform various housekeeping tasks at periodic times. Specifically some tasks every millisecond, others every 20 ms (50 times per second) and still others every second. So I thought about using setInterval(), with funny results: many function calls were being skipped. The benchmark I used is as follows: var counter = 0; var seconds = 0; var short = 1; setInterval(function() { counter ++; }, short); setInterval(function() { seconds ++; log(

问题 I am parsing datetime values as follows: df['actualDateTime'] = pd.to_datetime(df['actualDateTime']) How can I convert this datetime objects to milliseconds? I didn't see mention of milliseconds in the doc of to_datetime. Update (Based on feedback): This is the current version of the code that provides error TypeError: Cannot convert input to Timestamp . The column Date3 must contain milliseconds (as a numeric equivalent of a datetime object). import pandas as pd import time s1 = {'Date' : [

问题 I am trying to build a live video captioning editor and require that the JS/DOM returns the current video timeframe with milliseconds. According to the DOM, video.currentTime only returns the value in seconds. Is there anyway to get the value in/with milliseconds? 回答1: currentTime includes milliseconds. Open a YouTube video, open your console, then enter document.getElementsByTagName('video')[0].currentTime; You'll see the time milliseconds and beyond: 24.530629 回答2: ontimeupdate event gives