Some ports not showing on nmap

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I cannot find my NTP time server port (123)! I am on Linux Mint Cinnamon

I can find my other ports (22-ssh, 80-http, 3000-rocketchat, and 8000-restaurant-menu) on nmap. The time port and other ports come up when i run netstat -anu but i cannot see the ports listed above. the ports from netstat are:

Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State      
udp        0      0 0.0.0.0:631             0.0.0.0:*                          
udp        0      0 0.0.0.0:5353            0.0.0.0:*                          
udp        0      0 10.0.0.195:36625        0.0.0.0:*                          
udp        0      0 0.0.0.0:49017           0.0.0.0:*                          
udp        0      0 10.0.0.195:49175        0.0.0.0:*                          
udp        0      0 127.0.0.53:53           0.0.0.0:*                          
udp        0      0 10.0.0.195:68           10.0.0.1:67             ESTABLISHED
udp        0      0 10.0.0.195:123          0.0.0.0:*                          
udp        0      0 127.0.0.1:123           0.0.0.0:*                          
udp        0      0 0.0.0.0:123             0.0.0.0:*                          
udp6       0      0 2601:18e:8200:43b:33306 :::*                               
udp6       0      0 fe80::53bd:eb08:a46:546 :::*                               
udp6       0      0 :::37553                :::*                               
udp6       0      0 :::50043                :::*                               
udp6       0      0 :::5353                 :::*                               
udp6       0      0 2601:18e:8200:43b:39114 :::*                               
udp6       0      0 :::51883                :::*                               
udp6       0      0 :::44314                :::*                               
udp6       0      0 fe80::53bd:eb08:a46:123 :::*                               
udp6       0      0 2601:18e:8200:43b:d:123 :::*                               
udp6       0      0 2601:18e:8200:43b:9:123 :::*                               
udp6       0      0 2601:18e:8200:43b:::123 :::*                               
udp6       0      0 ::1:123                 :::*                               
udp6       0      0 :::123                  :::*                               

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