Add text inside DateTime.ToString with C#?

Question

I want to add a 'at' inside my DateTime format string but every time I try it messes it up?

origin.ToString("dd/MM/yyyy at HH:mm:ss");

When its this it works fine... but looks a bit ugly.

origin.ToString("dd/MM/yyyy HH:mm:ss");

Answer 1

add escape sequence:

origin.ToString("dd/MM/yyyy 'at' HH:mm:ss")