As a rule of thumb, it takes anywhere between 1-48 hours. When a domain is newly registered, the name serever are changed, or DNS changes are made, you can expect it would be take up to 1-48 hours. This is because it takes time for the DNS to take effect across the internet. The actual time of propagation may vary in some locations based on your network setup.
How do I check if my domain DNS is propagated?
You can always check where your domain is pointing to what IP address with this website;
You need to match the IP Address is the same as the shared IP address that you received on your email. You can also use ping and trace route your domain locally from your Windows/Mac command prompt to verify what IP you are actually seeing.