The domain drop time is between 11 AM and 3 PM , mostly they drop in batches during this time.
But one thing i don't understand: You said that the name is listed on pool with 5 days to go until drop. Then the same day you post again and say that the name is "taken already" by someone else. Thats not possible. The name was probably still in pending delete and thats probably what you meant with "taken"? You can check the status with any whois checker. There you can see the Status (PENDING DELETE) which is 6 days long.
Good names are mostly backordered by snap services or private dropcatchers.