milliseconds

I am not interested in what the current UTC time is in milliseconds, nor do I need to mess with timezones. My original date is already stored as a UTC timestamp. I have a date stored in a database in UTC time, "2012-06-14 05:01:25". I am not interested in the datetime, but just the date portion of the it. So, after retrieving the date in Java, and excluding the hours, minutes, and seconds - I am left with "2012-06-14". How can I convert this into UTC milliseconds? EDIT: I'd missed the "ignoring the time of day" part. It's now present, but near the end... The simplest approach is probably to

I've got a script that takes in a value in seconds (to 2 decimal points of fractional seconds): $seconds_input = 23.75 I then convert it to milliseconds: $milliseconds = $seconds_input * 1000; // --> 23750 And then I want to format it like so: H:M:S.x // --> 0:0:23.75 Where 'x' is the fraction of the second (however many places after the decimal there are). Any help? I can't seem to wrap my mind around this. I tried using gmdate() but it kept lopping off the fractional seconds. Thanks. Peter Bailey My take function formatSeconds( $seconds ) { $hours = 0; $milliseconds = str_replace( "0.", '',

i did some research, but still can't find how to get the days... Here is what I got: int seconds = (int) (milliseconds / 1000) % 60 ; int minutes = (int) ((milliseconds / (1000*60)) % 60); int hours = (int) ((milliseconds / (1000*60*60)) % 24); int days = ????? ; Please help, I suck at math, thank's. If you don't have another time interval bigger than days: int days = (int) (milliseconds / (1000*60*60*24)); If you have weeks too: int days = (int) ((milliseconds / (1000*60*60*24)) % 7); int weeks = (int) (milliseconds / (1000*60*60*24*7)); It's probably best to avoid using months and years if

I have to write a C program which has to sleep for milliseconds, which has to run on various platforms like Windows, Linux, Solaris, HP-UX, IBM AIX, Vxworks, and Windriver Linux On Windows , the Sleep system call will work on milliseconds only. On Linux , sleep will work on seconds; usleep will perform on microseconds and it's available on Solaris also. In Vxworks , I hope I can implement using taskDelay and sysClkRateSet . How can I achieve this millisecond sleep on HP-UX, IBM AIX and Wind River Linux? Propably a wrapper using platform specific #define s will do: #if defined(WIN32) #include

I'm definitely a bit lost with the new C++ chrono library. Here I have an update loop. It runs two operations: engine.Update() engine.Render() These are long operations, and it's hard to tell how long they are. Thus, we measure how long they took, then do some calculations and figure the best way to gradually call update before we call render. To do this, i'm using C++11's Chrono functionality. I chose it because it sounded like a good deal: More accurate, More platform dependent. I'm finding i'm hitting more problems than now now though. Following is my code, as well as my primary problem.

I'm trying to define an applet with a chart that have to be updated every n milliseconds. For example every 500 milliseconds. This is a part of the code: dataSet = new DynamicTimeSeriesCollection(1, 200, new Millisecond()); dataSet.setTimeBase(new Millisecond()); When I launch the application it returns me a NullPointerException raised by the second line. If I replace Milliseconds with Seconds it works. The question is: how can I set a period of n milliseconds without having exceptions? Thanks It looks like pointsInTime is not being initialized for Millisecond , but you can do so in a subclass

I have read a solution to this using tic(), toc() functions tic <- function(gcFirst = TRUE, type=c("elapsed", "user.self", "sys.self")) { type <- match.arg(type) assign(".type", type, envir=baseenv()) if(gcFirst) gc(FALSE) tic <- proc.time()[type] assign(".tic", tic, envir=baseenv()) invisible(tic) } toc <- function() { type <- get(".type", envir=baseenv()) toc <- proc.time()[type] tic <- get(".tic", envir=baseenv()) print(toc - tic) invisible(toc) } tic(); -----code---- toc(); elapsed 0.15 But I would like to get a lot of precision in milliseconds? Also I was using this ptm <- proc.time() --

In C# how can I convert Unix-style timestamp to yyyy-MM-ddThh:mm:ssZ? Start by converting your milliseconds to a TimeSpan : var time = TimeSpan.FromMilliseconds(milliseconds); Now, in .NET 4 you can call .ToString() with a format string argument. See http://msdn.microsoft.com/en-us/library/system.timespan.tostring.aspx In previous versions of .NET, you'll have to manually construct the formatted string from the TimeSpan's properties. new DateTime(numTicks * 10000) The DateTime(long ticks) constructor is what you need. Each tick represents 100 nanoseconds so multiply by 10000 to get to 1