Synchronize computer date over https (when NTP is blocked).

[Dilawar Singh]

If your IT admin has blocked ports which can talk to NTP server, you can use the following trick to update your date using http/https. Make sure wget is honoring the proxy.
May be a curl solution would be better.

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