How to Set Up NTP on Ubuntu in AWS

1. Configure NTP in timesyncd.conf

echo "NTP=169.254.169.123" | sudo tee -a /etc/systemd/timesyncd.conf
cat /etc/systemd/timesyncd.conf

1. Enable the timesyncd.service

sudo systemctl unmask systemd-timesyncd.service
sudo apt install systemd-timesyncd -y

1. Enable the timesyncd.service at boot & Restart

sudo systemctl enable systemd-timesyncd.service
sudo  systemctl restart systemd-timesyncd

1. Set the system time to be synchronized with NTP

sudo  timedatectl set-ntp true