C# Formatting TimeSpan to show a date

Question

I'm working on a simple program that calculates how old a member is and applies the correct membership fee based on age.

        public static DateTime DateTime()
    {
        DateTime birth = new System.DateTime(1991, 9, 20);
        DateTime today = new System.DateTime(2017, 1, 22);
        TimeSpan age = today - birth;
        Console.WriteLine(age);
        return birth;
    }

Here is the code I'm using, my return value is

9256.00:00:00

How can parse this into a more readable yyyy,mm,dd format?

If you need "age" as understood by most people - number of full years person is alive - you may want to use http://stackoverflow.com/questions/9/how-do-i-calculate-someones-age-in-c which gives result in just years. — Alexei Levenkov, Jan 23 '17 at 02:21
I was looking for a better solution to finding out the number of days since. — Luke Shinn, Jan 23 '17 at 03:20

score 0 · Answer 1 · edited May 23 '17 at 10:29

0

As Jon Skeet has put it:

TimeSpan has no sensible concept of "years" because it depends on the start and end point.

Why don't you try his Noda Time instead?

You can manually download here

You can also divide by 365.25 (average number of days in a year), and get the whole number

Convert.ToInt32(age.Days / 365.25);

edited May 23 '17 at 10:29

Community

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answered Jan 23 '17 at 02:16

Malcolm Salvador

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Voting as duplicate is better option when you have nothing to add to existing answer from another question. – Alexei Levenkov Jan 23 '17 at 02:24
Edited to add a bit to the answer. – Malcolm Salvador Jan 23 '17 at 02:31

score 0 · Accepted Answer · answered Jan 23 '17 at 02:24

0

Using nodatime

var ld1 = new LocalDate(1991, 9, 20);
var ld2 = new LocalDate(2017, 1, 22);
var period = Period.Between(ld1, ld2);

Debug.WriteLine(period.Years);
Debug.WriteLine(period.Months);
Debug.WriteLine(period.Days);

answered Jan 23 '17 at 02:24

Daniel

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Thanks! This helps me get where I need to be. – Luke Shinn Jan 23 '17 at 03:19

C# Formatting TimeSpan to show a date

2 Answers2