"Survive Until Dusk"

The people in charge of the teleportation gate answered the phone call and immediately replied to the woman with a cautious voice. 

"Well, the space and time tunnel should have stabilized after a few hours, and the strange space turbulence around the island will also disappear at dusk..." 

When it was sunset, it would be possible to start the teleportation portal again and retrieve all 1000 people back to the academy regardless of the person's life and death. 

But it was only noon right now, and there were at least four to five hours left until dusk came. 

And the worst thing was, the tide of monsters and beasts would arrive within one hour or if they were blocked by something,  they would still arrive within two hours. 

It might be less than the predicted time. 

Can these 1000 people survive for two hours or more until they are all recalled back by the teleportation portal?