time.sh

time.sh

#!/bin/sh

# dt=$(echo -ne "GET / HTTP/1.1\r\nHost: whatismyip.akamai.com\r\nAccept: text/plain\r\nConnection: close\r\n\r\n" | nc -w1 whatismyip.akamai.com 80 | awk -F': ' '/Date: /{print $2;exit}')
# t=$(date -d "$dt" +%s)

a=$((printf "c%47s" | nc -uw1 pool.ntp.org 123 | xxd -s40 -l4 -p) 2>/dev/null) 
if [ ! -z "$a" ]; then
	b=$((printf "%d" 0x$a) 2>/dev/null)
	if [ "$b" -gt 2208988800 ] 2>/dev/null; then
		t=$((0x$a-2208988800))
		echo $t $(date -d "@$t")
	fi
fi