time

问题 What's the difference between strptime and strftime ? I see that strptime is a method in the DateTime class, and strftime is a method in the Time class. What's the difference between Time and DateTime , other than that they have different core methods? The explanation for the Time class in the Ruby docs is helpful, but the one for DateTime just says "datetime". There's also the Date class, which says it provides Date and DateTime . Help me make sense of this. I see strptime and I want to

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 6 years ago . How can I isolate and convert the local time format in JavaScript's new Date() to a 24 hour format? Example: 2016-09-22T23:21:56.027Z just becomes 22:56 in local time. 回答1: new Date("2000-01-01 10:30 AM").getHours() // 10 This is 24 hours: new Date("2000-01-01 10:30 PM").getHours() // 22 If you

问题 I know this is less programming related and more time management related, but I value the feedback of the users on this site. I'm finding myself particularly busy this semester, managing various tasks and timelines between work and school. Further, I find myself running around between labs, work, home, libraries, etc. For these reasons I think a web based solution is ideal. Which leads to the question, do you have a recommended web based solution for task/project management for personal use?

问题 I need the unix timestamp - the timestamp i have. Then display the time between like on twitter. 回答1: If you have the difference called diff: $seconds = intval($diff) % 60; $minutes = intval($diff/60) % 60; $hours = intval($diff/3600) % 24; $days = intval($diff/(3600*24)); Is this what you want ? 回答2: Not sure what language you need it, but if it will end up in a web page, you may try timeago. 回答3: Use example : echo time_elapsed_string('@1367367755'); echo time_elapsed_string('@1367367755',

问题 I was given some very good hints in this forum about how to code a clock object in Python 2. I've got some code working now. It's a clock that 'ticks' at 60 FPS: import sys import time class Clock(object): def __init__(self): self.init_os() self.fps = 60.0 self._tick = 1.0 / self.fps print "TICK", self._tick self.check_min_sleep() self.t = self.timestamp() def init_os(self): if sys.platform == "win32": self.timestamp = time.clock self.wait = time.sleep def timeit(self, f, args): t1 = self

问题 What's the equivalent of microsec_clock for milliseconds in the following code? #include <boost/date_time/posix_time/posix_time.hpp> int main() { boost::posix_time::ptime date_time = boost::posix_time::microsec_clock::local_time(); const std::string str_time = boost::posix_time::to_simple_string(date_time); std::cout << str_time << std::endl; return 0; } output: 2015-Jan-25 16:26:14.932738 I need the following output: output: 2015-Jan-25 16:26:14.932 回答1: Indeed, this seems a strange omission

问题 What's the equivalent of microsec_clock for milliseconds in the following code? #include <boost/date_time/posix_time/posix_time.hpp> int main() { boost::posix_time::ptime date_time = boost::posix_time::microsec_clock::local_time(); const std::string str_time = boost::posix_time::to_simple_string(date_time); std::cout << str_time << std::endl; return 0; } output: 2015-Jan-25 16:26:14.932738 I need the following output: output: 2015-Jan-25 16:26:14.932 回答1: Indeed, this seems a strange omission

问题 This question already has answers here : Y returns 2012 while y returns 2011 in SimpleDateFormat (4 answers) Why does sdf.format(date) converts 2018-12-30 to 2019-12-30 in java? [duplicate] (3 answers) Closed 8 days ago . From document SimpleDateTimePattern, yy should be the same with YY . Today is Dec 30, 2019 , now we get YY for today is 20 , yy for today is 19 . What's the difference between yy and YY in Java Time Pattern? 回答1: yy is the calendar year, while YY is a week year. A week year

问题 How to display only hours and using int variable? I mean print time like 20:30:44 PM, I want to store only hours, mean 20 in int variable. how to do that? Can anybody tell me the code if you know, thanks? 回答1: Try using Calendar's get method like: Calendar c = .. c.setTime(...);//if you have time in long coming from somewhere else int hour = c.get(Calendar.HOUR_OF_DAY); 回答2: If you try to parse time from String I recommend these solutions: String time = "20:30:44 PM"; // this is your input

问题 Is there a way using C or assembler or maybe even C# to get an accurate measure of how long it takes to execute a ADD instruction? 回答1: Yes, sort of, but it's non-trivial and produces results that are almost meaningless, at least on most reasonably modern processors. On relatively slow processors (e.g., up through the original Pentium in the Intel line, still true on most small embedded processors) you can just look in the processor's data sheet and it'll (normally) tell you how many clock