How can I get the DOS and Unix clock to agree on Solaris/x86?

After installation, run the command /usr/sbin/rtc -z $TZ,
where $TZ is your timezone. The default root crontab runs
/usr/sbin/rtc -c once every day.

That way your clock will give the proper time whether you boot
Solaris or DOS/Windows.

But it is recommended that on systems which do not run
another OS which requires the clock to run in current time
to run the system clock in UTC using "/usr/sbin/rtc -c -z UTC"