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How to format a duration in java? (e.g format H:MM:SS)
...ttern like H:MM:SS. The current utilities in java are designed to format a time but not a duration.
19 Answers
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Adding minutes to date time in PHP
I'm really stuck with adding X minutes to a datetime, after doing lots of google'ing and PHP manual reading, I don't seem to be getting anywhere.
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How do I convert seconds to hours, minutes and seconds?
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You can use datetime.timedelta function:
>>> import datetime
>>> str(datetime.timedelta(seconds=666))
'0:11:06'
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What's the difference between dynamic (C# 4) and var?
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var is static typed - the compiler and runtime know the type - they just save you some typing... the following are 100% identical:
var s = "abc";
Console.WriteLine(s.Length);
and
string s = "abc";
Console.WriteLine(s.Length);
All that happened was that the comp...
Convert a Unix timestamp to time in JavaScript
I am storing time in a MySQL database as a Unix timestamp and that gets sent to some JavaScript code. How would I get just the time out of it?
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Current time formatting with Javascript
I want to get current time in a specific format with javascript.
14 Answers
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Any reason not to use '+' to concatenate two strings?
...te a new string object for each iteration, and it ends up taking quadratic time. (Recent versions of CPython can apparently optimize this in some cases, but other implementations can't, so programmers are discouraged from relying on this.) ''.join is the right way to do this.
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How to calculate “time ago” in Java?
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Take a look at the PrettyTime library.
It's quite simple to use:
import org.ocpsoft.prettytime.PrettyTime;
PrettyTime p = new PrettyTime();
System.out.println(p.format(new Date()));
// prints "moments ago"
You can also pass in a locale for inter...
best way to preserve numpy arrays on disk
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I've compared performance (space and time) for a number of ways to store numpy arrays. Few of them support multiple arrays per file, but perhaps it's useful anyway.
Npy and binary files are both really fast and small for dense data. If the data is sparse or v...
Given a DateTime object, how do I get an ISO 8601 date in string format?
...rst suggestion). Refer to the comments section for more information.
DateTime.UtcNow.ToString("yyyy-MM-ddTHH\\:mm\\:ss.fffffffzzz");
This gives you a date similar to 2008-09-22T13:57:31.2311892-04:00.
Another way is:
DateTime.UtcNow.ToString("o");
which gives you 2008-09-22T14:01:54.9571247Z...