Can not convert string to datetime

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i am trying to get datetime from string, the date time i need must either be in military format ( 24 Hour example 1:30 PM should be 13:30 ) or has PM ,AM indication
this link has not helped me
//https://msdn.microsoft.com/en-us/library/5ey6h79d%28v=vs.110%29.aspx

i tried this

C#

System.DateTime dt = new System.DateTime();
dt = Convert.ToDateTime("01/08/2008 4:50:50.42");//<---- error here
MessageBox.Show(dt.ToString());

What I have tried:

DateTime date1 = new DateTime(int.Parse("2009"),
int.Parse("8"),
int.Parse("1"),
int.Parse("0"),
int.Parse("0"),
int.Parse("0")
);
i think it is not possible to insert AM or PM as a last parametr in the above code

Posted 2-Mar-16 10:55am

Engineer khalid

Updated 2-Mar-16 11:31am

v4

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Aria Jafarian 2-Mar-16 17:27pm

You have to use DateTime.ParseExact as indicated below

2 solutions

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Garth J Lancaster · Answer 1 · 2016-03-02T11:25:00

Solution 1

whats wrong with

C#

string dateString = "01/01/2008 4:50:50.42"; 
string format = "dd/MM/yyyy h:mm:ss.ff";

DateTime dateTime = DateTime.ParseExact(dateString, format, CultureInfo.InvariantCulture);

? you can follow here for the specifiers - 'tt' for example is AM/PM ... Custom Date and Time Format Strings[^]

Posted 2-Mar-16 11:25am

Garth J Lancaster

Comments

Engineer khalid 2-Mar-16 17:45pm

Hellow Garth.
my computer is set to Arabic calender not Gregorian, most likley this was the error

this is what i have got
Specified time is not supported in this calendar. It should be between 04/30/1900 00:00:00 (Gregorian date) and 05/13/2029 23:59:59 (Gregorian date), inclusive.
//
i will try in another computer , and your answer shall be accepted many thanks

Garth J Lancaster 2-Mar-16 18:22pm

cool - dont forget you can also change this [CultureInfo.InvariantCulture] to something appropriate

CHill60 · Answer 2 · 2016-03-02T11:31:00

Your code does not produce any error with my localisation

This code will produce AM/PM in the output

C#

MessageBox.Show(dt.ToString("dd/MM/yyyy HH:m:s tt"));

But if you are using dates (especially if they are being used in the context of a database) then you should use unambiguous date formats

e.g.

C#

System.DateTime dt = new System.DateTime();
dt = Convert.ToDateTime("2008-08-01 4:50:50.42");
MessageBox.Show(dt.ToString("yyyyMMddTHH:00:00tt"));

which produces

20080801T04:00:00AM