When do you get called to the gate at LGW?

I know they don't make announcements at Gatwick, but long before the flight is scheduled to depart do they call you to the gate?
There's nothing worse than sitting at Gatwick staring at a screen waiting for the gate number to come up. If I had a rough idea, I'd only start checking at around that time.
Thanks in advance.
There's nothing worse than sitting at Gatwick staring at a screen waiting for the gate number to come up. If I had a rough idea, I'd only start checking at around that time.
Thanks in advance.