Linux Change time zone in command line

lake@M5273296:~$ date  -R
Mon, 28 Oct 2019 15:38:35 +0800
 
lake@M5273296:~$ sudo     cp /usr/share/zoneinfo/Asia/T  /etc/localtime
Taipei    Tashkent  Tbilisi   Tehran    Tel_Aviv  Thimbu    Thimphu   Tokyo     Tomsk
lake@M5273296:~$ sudo     cp /usr/share/zoneinfo/Asia/Tokyo    /etc/localtime
lake@M5273296:~$ date  -R
Mon, 28 Oct 2019 16:38:50 +0900
lake@M5273296:~$