duration

using Qt 4.8 how can I print the time in the format DD HH SS? I have the seconds and I want to get back a string in that format. cor3ntin QDateTime::fromTime_t(seconds).toString("ss hh DD"); see http://qt-project.org/doc/qt-5.0/qdatetime.html#toString If you want a duration ( your question was really unclear) try something like : QString seconds_to_DHMS(quint32 duration) { QString res; int seconds = (int) (duration % 60); duration /= 60; int minutes = (int) (duration % 60); duration /= 60; int hours = (int) (duration % 24); int days = (int) (duration / 24); if((hours == 0)&&(days == 0)) return

I'm building a event calendar and pass a start time to PHP, in the format of 2009-09-25 15:00:00. A duration gets passed as well, that might be in the format of 60 minutes or 3 hours. Converting from hours to minutes isn't the problem. How do you add a length of time to an established starting point to correctly format the end time? Using strtotime() you can convert the current time (2009-09-25 15:00:00) to a timestamp and then add (60 * 60 * 3 = 3hrs) to the timestamp. Finally just convert it back to whatever time you want. //Start date $date = '2009-09-25 15:00:00'; //plus time $plus = 60 *

The final result should display the user the time span between the start hour and the end hour.(e.g. start work at 06:30 AM and finished at 18:30 PM, the result to display should be 12 hours). Now, I have to DateTime parameters; fromTime and toTime Each DateTime parameter have an hour in 24 hour format, and also might have a minutes value of 30 min. What I willing to do is to get the time span between those DateTime parameters. For the hours I used this method: Public TimeSpan GetHourSpan(DateTime fromTime, DateTime toTime) { TimeSpan fromH = TimeSpan.FromHours(fromTime.Hour); TimeSpan toH =

i know duration of video type questions have been answered before but i am facing real trouble in getting duration of an .mp4 file by using AVAsset and by AVURLAsset . i am using Following code NSString *itemPathString = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)objectAtIndex:0] stringByAppendingPathComponent:obmodel.actualname]; NSURL *itemPathURL = [NSURL URLWithString:itemPathString]; if([[NSFileManager defaultManager] fileExistsAtPath:itemPathString]){ NSLog(@"File Exists"); } AVAsset *videoAsset = (AVAsset *)[AVAsset assetWithURL:itemPathURL];

I'm implementing some basic usage statistics for the first time in an Android/iOS app using Firebase Analytics, but the docs seem a little ambiguous to me on how exactly session durations are calculated and how sessions are timed out, and the 24-hour cycle for seeing results does not help in understanding by trial-and-error. I'm only interested in a very simple statistic for now - the time users spend in the app. What exactly happens when the app is "minimised"/"in the background" - does that count as active usage or the same as the app being closed - is not so important right now, but if you