command line time machine code example

Example 1: debian change time command line

sudo date -s "$(wget -qSO- --max-redirect=0 google.com 2>&1 | grep Date: | cut -d' ' -f5-8)Z"
sudo hwclock --systohc

Example 2: mac os time machine freeze

To see which files are being copied:
sudo fs_usage -wf filesys backupd | grep HFS_update