force-time-sync.sh

# setup time on the rpi for first time
sudo /etc/init.d/ntp stop
sudo ntpd -q -g
sudo /etc/init.d/ntp start
sudo timedatectl set-ntp true
sudo timedatectl set-local-rtc 0

# setup sleepypi
wget https://raw.githubusercontent.com/SpellFoundry/Sleepy-Pi-Setup/master/Sleepy-Pi-Setup.sh
chmod +x Sleepy-Pi-Setup.sh
sudo ./Sleepy-Pi-Setup.sh

sed -ir '/#(dtparam=i2c_arm=on)/$1/' /boot/config.txt

#install i2c-tools
sudo apt-get install i2c-tools
systemctl restart systemd-udevd
i2cdetect -y 1

# Tell RPI about the RTC
if grep -q "pcf8523" /boot/config.txt; then
    echo "RPI already knows about RTC"
else
    sudo echo "dtoverlay=i2c-rtc,pcf8523" >> /boot/config.txt
fi

# configure hw-clock
## comment out systemd portion and updating from rtc to rpi
sed -ie '/systemd/,+2 s/^/#/' -e '/systz/,s/^/#/g' /lib/udev/hwclock-set

# disable ntp
sudo systemctl stop ntp.service
sudo systemctl disable ntp.service

# disable fakehw clock
sudo systemctl stop fake-hwclock.service
sudo systemctl disable fake-hwclock.service
# stop and disable timesync
sudo systemctl stop systemd-timesyncd.service
sudo systemctl disable systemd-timesyncd.service

# ta-dah!
sudo reboot