Piper ARCHER II Pilot Operating Handbook page 191

SECTION '9 PIPER AIRCRAFT CORPORATION
SUPPLEMENTS PA-28-181, ARCHER I
(b) DATE SETTING
Pressing the RST button once will cause the date to appear with the
month flashing. Pressing the ST-SP button will advance the month
at one per second, or at one per push, until the right month appears.
Pressing the RST button once again will cause the date to flash, and
it can be set in a similiar manner.
(c) TIME SETTING
The RST button must now be pressed two times to cause the hours
digits to flash. The correct hour can be set in as described above.
Pressing the RST button once again will now cause the minutes
digits to flash. The minutes should be set to the next minute to come
up at the zero seconds time mark. The RST button is pressed once
more to hold the time displayed. At the time mark, the ST-SP
button is pressed momentarily to begin the time counting at the
exact second.
If the minutes are not advanced when they are flashing in the set
mode, pressing the RST button will return the clock to the normal
timekeeping mode without altering the minutes timing. This feature
is useful when changing time zones, when only the hours are to be
changed,
(d) AUTOMATIC DATE ADVANCE
The calendar function will automatically advance the date correctly
according to the four year perpetual calendar. One day must be
added manually on Feb. 29 on leap year. The date advances
correctly at midnight each day.
(ec) DISPLAY TEST
Pressing both the RST and ST-SP buttons at the same time will
result in a display test function.
SECTION 5 - PERFORMANCE
No changes to the basic performance provided by Section 5 of this
Pilot's Operating Handbook are necessary for this supplement.
REPORT: VB-1120 ': ISSUED: JANUARY 14, 1981
9-20