SHELL

get current time curl

$ date -s `curl -I 'https://google.com/' 2>/dev/null | grep -i '^date:' | sed 's/^[Dd]ate: //g'`

curl time response

# -s, --silent
# Silent  or  quiet  mode.  
# Don't  show progress meter or error messages.  
# Makes Curl mute. 
# It will still output the data you ask for.
curl 
        --output /dev/null 
        --silent 
        --write-out '%{time_namelookup}' 
        https://google.com