I have an Employee table 

public class Employee { [Key] public long ID { get; set; } public DateTime EmpDate { get; set; } public string FirstName { get; set; } public string LastName { get; set; } }

I have created web API to post the employee data:

[HttpPost] public async Task<ActionResult<Employee>> PostLead(Employee employee) { //Code to post }

This is my JSON body

{ "firstname":"xyz", "lastname":"abc", "EmpDate":"2019-01-06 17:16:40" }

I am getting error as The JSON value could not be converted to System.DateTime. But when I pass EmpDate value as 2019-01-06, I am not getting an error.

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1 Answer

your date value in your JSON isn't correct. should be 

2019-01-06T17:16:40

Most parsers use ISO 8601

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