To get rid of the complex if and switch constructs you can use a Dictionary lookup for the correct format string based on TotalSeconds and a CustomFormatter to format the supplied Timespan accordingly. public string GetReadableTimespan(TimeSpan ts) { // formats and its cutoffs based on totalseconds var cutoff = new SortedList<long, string> { {59, “{3:S}” … Read more
Both internally does the same thing. Compare Ticks and return result. public int CompareTo(TimeSpan value) { long t = value._ticks; if (_ticks > t) return 1; if (_ticks < t) return -1; return 0; } public static bool operator <(TimeSpan t1, TimeSpan t2) { return t1._ticks < t2._ticks; } The only reason could be the … Read more
Sorry, guys, but both the question and the popular answer so far are wrong 🙂 The question is wrong because Tyndall asks for a way to round but shows an example of truncation. Will Dean’s answer is wrong because it also addresses truncation rather than rounding. (I suppose one could argue the answer is right … Read more
DateTime values are immutable. The Add method returns a new DateTime value with the TimeSpan added. This works: Console.WriteLine(“A day after the day: ” + date.Add(t).ToString());
I’ve used .Net Reflector on TimeSpan.ToString(…) and it really doesn’t look like it supports any form of negative prefix on custom formats – so I think you’re out of luck when it comes to getting it to work for you as above. 🙁
The tricky thing is that what a year is, depends on where it starts. You can do DateTime now = DateTime.Now; TimeSpan span = now.AddYears(1) – now; This would give you the 1 year timespan from the current moment to one year later
This is very easy to do with C#. For comparing DateTimes, we have a class called TimeSpan. The TimeSpan structure, in this case, would be defined as the difference between your two datetimes. Let’s say that your DateTimes are called start and end. DateTime start = new DateTime(2009, 6, 14); DateTime end = new DateTime(2009, … Read more
The first consideration is wondering why they selected a double as the return value. Using long would have been an obvious choice. Although there already is a perfectly good property that is long, Ticks is unambiguous with a unit of 100 nanoseconds. But they picked double, probably with the intention to return a fractional value. … Read more
If you’re certain that the format will always be “HH:mm” then try something like this: string span = “35:15”; TimeSpan ts = new TimeSpan(int.Parse(span.Split(‘:’)[0]), // hours int.Parse(span.Split(‘:’)[1]), // minutes 0); // seconds
Not a part of the JDK currently, but will be incorporated in JDK 7 – try Joda Time