why is there two init scripts hwclockfirst.sh and hwclock.sh ?

[lanjelot]

Hello World

I am trying to understand the reason why there is two init scripts for
the same task: setting the system time from the hardware clock at boot up.

I am not getting why hwclockfirst.sh first runs
/sbin/hwclock --hctosys

which is going to be over ridden anyway because right after then it runs
/sbin/hwclock --noadjfile --hctosys

And then hwclock.sh runs this command again
/sbin/hwclock --hctosys

What is it all about ?