clock

My problem is whenever I try to compile using Makefile I get the following : make: Warning: File `Board.c' has modification time 1.3e+03 s in the future gcc -Wall -c -Wvla -lm Board.c -o Board.o gcc -Wall -c -Wvla -lm PlayBoard.c -o PlayBoard.o gcc -lm ErrorHandle.o Board.o PlayBoard.o -g -o PlayBoard make: warning: Clock skew detected. Your build may be incomplete. My Makefile is : CC = gcc FLAGS = -Wall -c -Wvla PlayBoard: ErrorHandle.o Board.o PlayBoard.o $(CC) -lm ErrorHandle.o Board.o PlayBoard.o -g -o $@ PlayBoard.o: PlayBoard.c Board.o $(CC) $(FLAGS) -lm PlayBoard.c -o $@ Board.o :

At first I thought it can be used for performance measurements. But it is said that std::chrono::high_resolution_clock may be not steady ( is_steady may be false ). It is also said that std::chrono::high_resolution_clock may even be an alias of std::chrono::system_clock which is generally not steady. So I can't measure time intervals with this type of clock because at any moment the clock may be adjusted and my measurements will be wrong. At the same time I can't convert time points of std::chrono::high_resolution_clock to calendar time because it doesn't have to_time_t method. So I can't get

I want to create an incrementing second timer like a stopwatch. So I want to be able to display the seconds and minutes incrementing in the format 00:01... Google only brings up 24 hour clock examples, I was wondering could anyone get me started with an example or tutorial of what I want to do? Edit: Here is what I have using the Chronometer in Android so far In onCreate() secondsT = 0; elapsedTimeBeforePause = 0; stopWatch.start(); startTime = SystemClock.elapsedRealtime(); stopWatch.setBase(elapsedTimeBeforePause); stopWatch.setOnChronometerTickListener(new OnChronometerTickListener(){

First off, this is a simple question that I'm stuck on in my Java 1 class. It's a static time that I set already as 8:49:12 "today" and I'm to figure out how many seconds past midnight and "to" midnight this represents. 8 hours, 49 minutes, and 12 seconds. Here is my code now: hour = 8; minute = 59; second = 32; System.out.println("The static time used for this program was: " + hour + ":" + minute + ":" + second); My issue is that I have no clue on how to get the time from and since midnight. So basically the output needs to be: Number of seconds since midnight: Number of seconds to midnight:

Linux provides the stime(2) call to set the system time. However, while this will update the system's time, it does not set the BIOS hardware clock to match the new system time. Linux systems typically sync the hardware clock with the system time at shutdown and at periodic intervals. However, if the machine gets power-cycled before one of these automatic syncs, the time will be incorrect when the machine restarts. How do you ensure that the hardware clock gets updated when you set the system time? Check out the rtc man-page for details, but if you are logged in as root, something like this:

I'm looking into writing a simple synchronization ability into my app and one of the concerns that has popped up is synchronization of time between two remote computers, each with their own clock (in particular concerning the modification dates of files/objects). I'm sure a lot of research has been done on this topic and don't want to get too theoretical, but I'm wondering if there are any accepted best practices for minimizing temporal discrepancies between remote clocks? For example, a start is to always use universal time (UTC) as that avoids timezone problems, but there is no guarantee