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How Can I Correctly Deserialize dd/MM/yyyy Dates with Json.Net?

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Release: 2024-12-31 22:40:10
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How Can I Correctly Deserialize dd/MM/yyyy Dates with Json.Net?

Handling Dates in dd/MM/yyyy Format with Json.Net

When deserializing JSON data containing dates formatted as dd/MM/yyyy, Json.Net may inadvertently interpret them in the MM/dd/yyyy format. This can lead to incorrect date values in your C# classes.

To rectify this, Json.Net provides the IsoDateTimeConverter. By specifying its DateTimeFormat property, you can instruct Json.Net to parse dates in the desired format. Here's an example:

MyObject obj = JsonConvert.DeserializeObject<MyObject>(jsonString, 
                   new IsoDateTimeConverter { DateTimeFormat = "dd/MM/yyyy" });
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For instance, with this configuration, 09/12/2013 will be correctly deserialized as 9 December 2013, rather than 12 September 2013.

Demonstration:

class Program
{
    static void Main(string[] args)
    {
        string json = @"{ ""Date"" : ""09/12/2013"" }";

        MyObject obj = JsonConvert.DeserializeObject<MyObject>(json, 
            new IsoDateTimeConverter { DateTimeFormat = "dd/MM/yyyy" });

        DateTime date = obj.Date;
        Console.WriteLine("day = " + date.Day);
        Console.WriteLine("month = " + date.Month);
        Console.WriteLine("year = " + date.Year);
    }
}

class MyObject
{
    public DateTime Date { get; set; }
}
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Output:

day = 9
month = 12
year = 2013
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