Could not convert string to datetime

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Hello
i want to convert string str to DateTime,str="2024/22/03"
SYSTEMFORMAT of my computer is m/d/yyyy
i want the Date_1 in format yyyy/MM/dd
Date_1 = Convert.ToDateTime(str, "yyyy/MM/dd");

What I have tried:

str = "2024/12/03"; 
Date_1 = Convert.ToDateTime(str, "yyyy/MM/dd");

Posted 22-Mar-24 4:19am

Engineer khalid

Updated 22-Mar-24 6:34am

PIEBALDconsult

v2

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PIEBALDconsult 22-Mar-24 12:35pm

Avoid the Convert class. Use the parsers for the type you want.

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Graeme_Grant · Accepted Answer · 2024-03-22T04:31:00

DateTime.ParseExact Method (System) | Microsoft Learn[^] will do what you want:

C#

string str = "2024/22/03";

// Parse the string into a DateTime object with the specified format
DateTime dateTime = DateTime.ParseExact(str, "yyyy/dd/MM", null);

// Format the DateTime object into the desired format
string formattedDate = dateTime.ToString("yyyy/MM/dd");

Console.WriteLine("Original string: " + str);
Console.WriteLine("Formatted date: " + formattedDate);

and the output:

Original string: 2024/22/03
Formatted date: 2024/03/22

OriginalGriff · Accepted Answer · 2024-03-22T07:05:00

To add to what Graeme has said, a better solution is to use DateTime.TryParseExact Method (System) | Microsoft Learn[^] instead - that way you can spot errors instead of your app crashing if the data isn't in the format you expect for some reason:

C#

DateTime dt;
if (!DateTime.TryParseExact(str, "yyyy/MM/dd", CultureInfo.InvariantCulture, DateTimeStyles.None, out dt))
   {
   ... report or log the problem
   return;
   }
... dt contains a valid date set at midnight here

Could not convert string to datetime

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