Install iputils-clockdiff by entering the following commands in the terminal:
sudo apt update sudo apt install iputils-clockdiff
Description:
Measure the time difference between networked computers
Clockdiff computes the difference between the time of the machine on which it is called and the time of other network-accessible machines. The time differences measured by clockdiff are obtained using a sequence of ICMP TSTAMP messages which are returned to the sender by the IP module in the remote machine.
Version: 3:20161105-1ubuntu2
Section: universe/net