==The RTC.COM utility==
If you need the 470 bytes of RAM that the integrated RTC driver occupies then you can make use of the RTC.COM utility in order to keep CP/M date and time updated.<br />
You can synchronize the date and time of CP/M Plus with the RTC by running ''RTC -G'' manually or via your PROFILE.SUB<br />You can also set your RTC to the current CP/M date and time by running ''RTC -S''<br />
==Error messages==
'''Hard disk errors:'''<br />