time

问题 When sleeping for a long time (like running time.sleep(3**3**3) ) in Python 3, the program returns an OverflowError with the error message "timestamp too large to convert to C _PyTime_t". What is the largest time length I can sleep? 回答1: The value should be 9223372036.854775, which is "is the maximum value for a 64-bit signed integer in computing". See this Wikipedia article. Mentioning of _PyTime_t in PEP 564: The CPython private "pytime" C API handling time now uses a new _PyTime_t type:

问题 When sleeping for a long time (like running time.sleep(3**3**3) ) in Python 3, the program returns an OverflowError with the error message "timestamp too large to convert to C _PyTime_t". What is the largest time length I can sleep? 回答1: The value should be 9223372036.854775, which is "is the maximum value for a 64-bit signed integer in computing". See this Wikipedia article. Mentioning of _PyTime_t in PEP 564: The CPython private "pytime" C API handling time now uses a new _PyTime_t type:

问题 I want to run my program in jupyter notebook and this program stops at specific time(for example 18:00). I wrote program by while loop and incremental index, but it's better to write it with time parameter. I run mentioned program for 7 hours each day. It must run nonstop. while(i<500000): execute algorithm i+=1 But I'd like to run my program like bellow: while(not 18:00 clock): execute algorithm 回答1: import datetime while datetime.datetime.now().hour < 18: do stuff... or if datetime.datetime

问题 I wonder if it's possible to scroll down after 6 seconds to an anchor? I found this script where it scrolls down a couple of pixels but it's not completely what I'm looking for. <script type='text/javascript'> setTimeout("window.scrollBy(0,270);",6000); </script> Also how can i make it scroll down smoothly? I found this but how do i combine it with the other script? function scrollToAnchor(aid) { var aTag = $("a[name='" + aid + "']"); $('html,body').animate({scrollTop: aTag.offset().top},

问题 I want to create an app that displays the time. This makes the time in the header redundant. 回答1: You may present a view controller modally. In this case, no time is displayed at the top. However, you should be aware of the following App Store Review Guideline: Watch Apps whose primary function is telling time will be rejected 来源： https://stackoverflow.com/questions/29184213/is-it-possible-to-hide-the-time-in-the-apple-watch-header

问题 I have this graph: which is built in ChartJS, however, between 1pm and 5:30pm, there was no data. All I want the chart to do is display that there is no data, rather than joining the two points. Can this be done? In theory I have a new value every 5 seconds, but this could reduce, so I guess I would need to be able to set a tolerance of gaps to join vs gaps to show? ChartOptions shown below: myChart = new Chart(ctx, { type: 'line', data: { labels: timestamp, datasets: [{data: speed

问题 What does python time and datetime module return on the leap second? What will I get when we are at 23:59:60.5 if I call: time.time() datetime.datetime.utcnow() datetime.datetime.now(pytz.utc) Also, any difference between py2.7 and py3? Why it is confusing (at least for me): From the datetime docs I see: Unlike the time module, the datetime module does not support leap seconds. On the time docs I see there is "support" for leap seconds when parsing with strptime . But there is no comment

问题 I'm developing a system that often use the system time because the Delayed interface. What is fastet way to get the time from system? Currently I'm using Calendar.getInstance().getTimeInMillis() every time I need to get the time, but I don't know if there is a faster way. 回答1: System.currentTimeMillis() "Returns the current time in milliseconds" . Use this to get the actual system time. System.nanoTime(). "The value returned represents nanoseconds since some fixed but arbitrary origin time"

问题 This question already has answers here : In Python, how do you convert seconds since epoch to a `datetime` object? (5 answers) Closed 6 years ago . Originally I made this code to convert date into human readable time: a = datetime.datetime.strptime(time, "%Y-%m-%d %H:%M:%S.%f") b = datetime.datetime.now() c = b - a days, hours, minutes, seconds = int(c.days), int(c.seconds // 3600), int(c.seconds % 3600 / 60.0), int(c.seconds % 60.0) return days, hours, minutes, seconds EXAMPLE OUTPUT: 1 days

问题 I was trying to familiarize myself with the C time.h library by writing something simple in VS. The following code simply prints the value of x added to itself every two seconds: int main() { time_t start = time(NULL); time_t clock = time(NULL); time_t clockTemp = time(NULL); //temporary clock int x = 1; //program will continue for a minute (60 sec) while (clock <= start + 58) { clockTemp = time(NULL); if (clockTemp >= clock + 2) { //if 2 seconds has passed clock = clockTemp; x = ADD(x);