[root@netkiller ~]# date -d "$(echo 20220103T1430 | sed 's/T/ /')"
Fri Jan  3 14:30:00 CST 2022		
		
		

		
[root@netkiller ~]# date -d "$(echo 20220103T143011 | sed -r 's/(.*)T(..)(..)(..)/\1 \2:\3:\4/')"
Mon Jan  3 14:30:11 CST 2022