Add Updated date to Entity Framework Core 6

Question

I have been following the microsoft tutorial code first razor pages to create an sql database project. I want to display the created date and the updated date on my 'people' index page.

My model:

public class People
{
    public int ID { get; set; }
    public DateTime CreatedAt { get; set; }
    public DateTime UpdatedAt { get; set; }
    public Ctype Ctype { get; set; }
    [Required]
    [StringLength(50, ErrorMessage = "First name cannot be longer than 50 characters.")]
    [Display(Name = "First Name")]
    public string FirstName { get; set; }
    [Required]
    [StringLength(50)]
    [Display(Name = "Last Name")]
    public string LastName { get; set; }
}

My context

protected override void OnModelCreating(ModelBuilder modelBuilder)
{
        modelBuilder.Entity<Demographic>().ToTable("Demogrphic");
        modelBuilder.Entity<Address>().ToTable("Address");
        modelBuilder.Entity<People>().ToTable("People")
            .Property(e => e.CreatedAt)
            .HasDefaultValueSql("GETDATE()");
        modelBuilder.Entity<People>().ToTable("People")
            .Property(e => e.UpdatedAt)
            .HasDefaultValueSql("GETDATE()");
}

When it comes to the view I'm at a loss - I've read posts about overriding the save do I replace the async or am I supposed to slot it in somewhere here?

namespace Ceso.Pages.Peoples
{
    public class EditModel : PageModel
    {
        private readonly Ceso.Data.CesoContext _context;

        public EditModel(Ceso.Data.CesoContext context)
        {
            _context = context;
        }

        [BindProperty]
        public People People { get; set; } = default!;
        public DateTime UpdatedAt { get; set; }

        public async Task<IActionResult> OnGetAsync(int? id)
        {
            if (id == null || _context.People == null)
            {
                return NotFound();
            }

            var people =  await _context.People.FirstOrDefaultAsync(m => m.ID == id);

            if (people == null)
            {
                return NotFound();
            }

            People = people;

            return Page();
        }

        public async Task<IActionResult> OnPostAsync()
        {
            if (!ModelState.IsValid)
            {
                return Page();
            }

            _context.Attach(People).State = EntityState.Modified;

            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!PeopleExists(People.ID))
                {
                    return NotFound();
                }
                else
                {
                    throw;
                }
            }

            return RedirectToPage("./Index");
        }

        private bool PeopleExists(int id)
        {
             return (_context.People?.Any(e => e.ID == id)).GetValueOrDefault();
        }
    } 
}