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Questions tagged [time]

Measuring the time it takes to perform an operation. Also, questions related to obtaining the current time, calculating on times, formatting and parsing times, etc.

Measuring the time it takes to perform an operation. Also, questions related to obtaining the current time, calculating on times, formatting and parsing times, etc. See also and .

For analysis in , consider looking at the Time Series Task View.

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What is the easiest way to get current GMT time in Unix timestamp format?

Python provides different packages (datetime, time, calendar) as can be seen here in order to deal with time. I made a big mistake by using the following to get current GMT time time.mktime(datetime.datetime.utcnow().timetuple()) What is a simple…
Cory
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Get a UTC timestamp

How can I get the current UTC timestamp in JavaScript? I want to do this so I can send timestamps from the client-side that are independent of their timezone.
Ben G
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Timing a command's execution in PowerShell

Is there a simple way to time the execution of a command in PowerShell, like the 'time' command in Linux? I came up with this: $s=Get-Date; .\do_something.ps1 ; $e=Get-Date; ($e - $s).TotalSeconds But I would like something simpler like time…
Paolo Tedesco
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Displaying the build date

I currently have an app displaying the build number in its title window. That's well and good except it means nothing to most of the users, who want to know if they have the latest build - they tend to refer to it as "last Thursday's" rather than…
Mark Mayo
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How do I use .toLocaleTimeString() without displaying seconds?

I'm currently attempting to display the user's time without displaying the seconds. Is there a way I can do this using Javascript's .toLocaleTimeString()? Doing something like this: var date = new Date(); var string =…
javadog36
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How do I check the difference, in seconds, between two dates?

There has to be an easier way to do this. I have objects that want to be refreshed every so often, so I want to record when they were created, check against the current timestamp, and refresh as necessary. datetime.datetime has proven to be…
alexgolec
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How do I represent a time only value in .NET?

Is there a way one can represent a time only value in .NET without the date? For example, indicating the opening time of a shop? TimeSpan indicates a range, whereas I only want to store a time value. Using DateTime to indicate this would result in…
sduplooy
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Get the time difference between two datetimes

I know I can do anything and some more envolving Dates with momentjs. But embarrassingly, I'm having a hard time trying to do something that seems simple: geting the difference between 2 times. Example: var now = "04/09/2013 15:00:00"; var then =…
Leo
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Python datetime - setting fixed hour and minute after using strptime to get day,month,year

I've successfully converted something of 26 Sep 2012 format to 26-09-2012 using: datetime.strptime(request.POST['sample_date'],'%d %b %Y') However, I don't know how to set the hour and minute of something like the above to 11:59. Does anyone know…
user1678031
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How to convert date to timestamp?

I want to convert date to timestamp, my input is 26-02-2012. I used new Date(myDate).getTime(); It says NaN.. Can any one tell how to convert this?
selladurai
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How to redirect the output of the time command to a file in Linux?

Just a little question about timing programs on Linux: the time command allows to measure the execution time of a program: [ed@lbox200 ~]$ time sleep 1 real 0m1.004s user 0m0.000s sys 0m0.004s Which works fine. But if I try to redirect…
ed82
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Difference between CLOCK_REALTIME and CLOCK_MONOTONIC?

Could you explain the difference between CLOCK_REALTIME and CLOCK_MONOTONIC clocks returned by clock_gettime() on Linux? Which is a better choice if I need to compute elapsed time between timestamps produced by an external source and the current…
NPE
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What is the `zero` value for time.Time in Go?

In an error condition, I tried to return nil, which throws the error: cannot use nil as type time.Time in return argument What is the zero value for time.Time?
Mingyu
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Python logging: use milliseconds in time format

By default logging.Formatter('%(asctime)s') prints with the following format: 2011-06-09 10:54:40,638 where 638 is the millisecond. I need to change the comma to a dot: 2011-06-09 10:54:40.638 To format the time I can…
Jonathan Livni
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System.currentTimeMillis() vs. new Date() vs. Calendar.getInstance().getTime()

In Java, what are the performance and resource implications of using System.currentTimeMillis() vs. new Date() vs. Calendar.getInstance().getTime() As I understand it, System.currentTimeMillis() is the most efficient. However, in most…
Vihung
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