How do I get EntityFrameworkCore generated SQL to use the right format for DateTime objects?

I'm using Microsoft.EntityFrameworkCore.SqlServer v2.1.2 (and have also tried v2.2.0-preview1-35029) and am using LINQ to fetch a collection of entities from an Azure SqlServer database, filtering on a DateTime field.

However, the SQL generated by the LINQ statement uses a string-based DateTime value that SqlServer rejects with this error:

Conversion failed when converting date and/or time from character string.

I can modify the SQL statement to change the datetime format so that the query works without error (see below for details), but I don't know how to get the framework to generate that same datetime format.

While EntityFrameworkCore is still kinda new, it seems like this is a pretty straightforward use case, so I'm assuming I'm doing something wrong and that it's not a framework issue.

How do I prevent EF from generating an invalid datetime value in the SQL?

and/or

How do I get the generated SQL to use another format for DateTime objects?

The EntityFramework model I'm using looks like this:

public class DeskReading
{
    public int DeskReadingId { get; set; }
    //... some other fields ...
    public DateTime Timestamp { get; set; }
}

And my LINQ to query the values looks like this:

IQueryable<DeskReading> readings = 
    _dbContext.DeskReadings
            .OrderBy(gr => gr.Timestamp)
            .Where(gr => gr.Timestamp > new DateTime(2017, 05, 01));

readings.ToList();

And the SQL that's generated by that looks like this:

SELECT [gr].[DeskReadingId] --...some other fields ...
FROM [DeskReadings] AS [gr]
WHERE [gr].[Timestamp] > '2017-05-01T00:00:00.0000000'
ORDER BY [gr].[Timestamp]

Note that the value for the filter is '2017-05-01T00:00:00.0000000'

If I run that SQL directly on the SqlServer via SSMS, I get the same error:

But if I change the filter to use '2017-05-01 00:00:00', it works fine:

SELECT [gr].[DeskReadingId] --...some other fields ...
FROM [DeskReadings] AS [gr]
WHERE [gr].[Timestamp] > '2017-05-01 00:00:00'
ORDER BY [gr].[Timestamp]

As requested, here's the create script for the table:

CREATE TABLE [dbo].[DeskReadings](
    [DeskReadingId] [int] IDENTITY(1,1) NOT NULL,
    [SoilMoistureSensor1] [int] NOT NULL,
    [SoilMoistureSensor2] [int] NOT NULL,
    [LightLevel] [int] NOT NULL,
    [TemperatureF] [real] NOT NULL,
    [HumidityPercent] [real] NOT NULL,
    [Timestamp] [datetime] NOT NULL,
 CONSTRAINT [PK_dbo.DeskReadings] PRIMARY KEY CLUSTERED 
(
    [DeskReadingId] ASC
)WITH (STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]