OpenWrt configure Time Server (ntpclient)

# navie
# rdate
# hotplug.d/iface/40-rdate

# v1
#opkg install ntpdate
#ntpdate ntp1.fau.de

# v2
opkg install ntpclient

# configure timezonte for berlin
sed -i 's|UTC|CET-1CEST,M3.5.0,M10.5.0/3|g' /etc/config/system

# create cronjob
# /etc/crontabs/root
#*/10 * * * * /etc/init.d/S55ntpclient

# test
#hwclock -w