If you are trying to change date of a Linux system using command `date -s`, it shows changed date as a result but when you run date command again, it shows old date. You are getting this issue because there may be reason that NTP is enabled.
Solution :
Disable the NTP using command.
sudo timedatectl set-ntp 0
Now change date again using `date -s` command. Now date should be changed successfully.
Solution :
Disable the NTP using command.
sudo timedatectl set-ntp 0
Now change date again using `date -s` command. Now date should be changed successfully.