datetime-tostring

C# – Convert DateTime to string

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When you want to convert a DateTime to a string, use ToString(). By default, this converts the DateTime to a string using the current culture’s date/time format (from the OS). In most cases, you’ll want to specify the format to use. You can do this by passing in a format string consisting of format specifier … Read more

C# – Get the current date and time

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Use DateTime.Now to get the current date/time, like this: This outputs the system’s current date/time: Note: By default, it uses the current culture’s date format (from the OS). This is showing the US date format – MM/dd/yyyy. DateTime.Now is the local date/time from the system where the code is executing. Keep that in mind if … Read more

C# – Changing the JSON serialization date format

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When you serialize a date with System.Text.Json, it uses the standard ISO-8601 date format (ex: “2022-01-31T13:15:05.2151663-05:00”). Internally, it uses the built-in DateTimeConverter class for handling DateTime, which doesn’t give you a way to change the date format. To change the date format, you have to create a custom JSON converter and pass it in: This … Read more

System.Text.Json – How to serialize non-public properties

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By default, System.Text.Json.JsonSerializer only serializes public properties. If you want to serialize non-public properties, you have two options: In this article, I’ll show examples of both approaches for handling non-public properties. Updated 2022-02-22 to explain the new JsonInclude attribute added in .NET 5. Write a custom JSON converter to serialize non-public properties When the built-in … Read more