There will usually be a prompt on the ticket grabbing page to determine whether train tickets are available. If the system displays “queuing”, it means the ticket grabbing is in progress, and the result is usually available within a few seconds to a few minutes. If it says “sold out” it means you got the ticket; if it says “tickets sold out” or “no tickets” it means you can’t get the ticket. The specific time depends on network conditions and the number of people grabbing tickets.