Question about NEC 80573 Corded Phone

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How do I change the clock?

Daylight savings time happened and now all our clocks say the wrong time and we can't figure out how to change the time. Can you help me?

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  • Anonymous Mar 11, 2008

    daylight savings time went up i need to change the clocks



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FROM EXTENSION 300: Press #TD + Enter time in 24-hour clock using hours (2 digits), minutes (2 digits) and seconds (2 digits) + HOLD + Enter date using month (2 digits), day (2 digits) and year (4 digits) + HOLD + SPK to exit. This will change the time on all the phones and voice mail.

Posted on May 31, 2007


Be sure to go to the "Mama" phone to do this fix... this will fix all the "Babies".

Posted on Mar 13, 2008


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3 Answers

How to set time

Plug in the unit.
First, the month and date appear, then the
year, and then the current Eastern Standard/
Daylight Time appears in the display.
Area number "2" appears in the display.
If you live in the Eastern Time zone, you do
not need to adjust the area setting.
Area number
Time zone
Atlantic Standard/
Daylight Time
Eastern Standard/
Daylight Time
Central Standard/
Daylight Time
Mountain Standard/
Daylight Time
Pacific Standard/Daylight
Yukon Standard/Daylight
Hawaiian Standard/
Daylight Time
repeatedly until the
desired number appears.
The display returns to the clock about 4
seconds after the operation is complete.
During the shipment and your first use, a clock
error may occur. In this case, refer to "Setting the
clock and date" to set the correct time.
When daylight saving time
(summer time) begins
This unit employs Automatic Daylight Saving
Time/Summer Time adjustment. The DST
indicator appears in the display at the beginning
of the daylight saving time (summer time), and
disappears at the end of it.
Daylight saving time begins at: 2:00 AM on the
second Sunday of March.
Standard time begins at: 2:00 AM on the first
Sunday of November.
To cancel the automatic DST/summer
time adjustment and to set DST display
The automatic DST/summer time adjustment can
be cancelled.
Press and hold
for at least 3 seconds while
the clock is displayed.
A beep sounds, and "Aut
OFF" appears in the
display to show that the automatic DST/summer
time adjustment is cancelled. The display returns
to the clock.
Daylight Saving Time depends on the law in
each country/region, and your area may not use
it. In such a case, cancel the automatic DST/
summer time adjustment before using the set
and set the time manually as necessary.
To activate the automatic DST/summer time
adjustment again, press and hold
for at
least 3 seconds. A beep sounds, and "Aut
On" appears in the display to show that the
automatic DST/summer time adjustment is
activated. The display returns to the clock.
To change the display to the daylight saving
time (summer time) manually, see "To change
the display to the daylight saving time (summer
time) indication."
Setting the clock and
To change the setting manually, follow the
procedure from step
for at least 2 seconds.
You will hear a beep and the year will start to
flash in the display.
until the correct year
appears in the display.
Repeat steps
to set the month,
day and time.
After setting the time, two short beeps sound
and the clock starts from 0 seconds.
Pressing and holding
changes the year,
month or day rapidly.
When setting the current time, time changes
rapidly by 1 minute-increments up to 10
minutes, and then by 10 minute-increments.
While setting the clock, you must perform each
step within 65 seconds, or the clock setting
mode will be cancelled.
To display the year and date
once for the
date, and within about 3 seconds press it again for
the year.
The display shows the date or year for about 3
seconds and then changes back to the current
If you connect the AC plug to an AC outlet while
this unit is powered from the backup power
source, the current date and time appears in the
following order (the same as when the unit is
powered on after a power interruption).
"month and date" (about 1 second)
(about 1 second)
"current time"
To change the display to the daylight
saving time (summer time) indication
Change the daylight saving time (summer time)
adjustment setting according to the following
procedures if you have cancelled the automatic
DST/summer time adjustment.
The DST indicator appears in the display and the
time indication changes to the daylight saving
time (summer time).
To deactivate the daylight saving time (summer
time) adjustment, press

May 24, 2015 | Sony SY-ICF-C414 Clock Radio

1 Answer


The daylight saving time change is calendar based, and unfortunately there is no way to reprogram it to the new schedule. You'll have to make the time changes manually.

Jan 11, 2010 | Emerson SmartSet CKS1850 Clock Radio

2 Answers

Can't change clock to eastern standard time

Can't solve it but the clock doesn't know the government changed when daylight ends.

Nov 04, 2008 | RCA RP5430 Clock Radio

1 Answer

Wrong Time

This appears to be a issue with the Magellan code. The Magellan code is setting Daylight Savings Time according to 2007 rules and not the 2008 rules. Magellan support indicates to change the time zone from Eastern to Central, save it and then put the time zone back to Eastern Time. I do not understand this solution. You can simply uncheck the Daylight Savings Time option and this will put the clock to the correct time. You will need to check the Daylight Savings Time option to put the clock ahead one hour when the clock is off by one hour. Magellan support informs me this is a manual process. Magellan needs to create a fix in their firmware to change the clock according to 2008 Daylight Savings Time when the box is checked.

Oct 23, 2008 | GPS

2 Answers

Emerson Research SmartSet Clock Radio

There is a solution for this already. You can reprogram the clock to use the new DST settings.


Mar 10, 2008 | Emerson SmartSet CKS1850 Clock Radio

3 Answers

Emerson Research SmartSet Clock Radio

There was a sheet of paper that came with my clock explaining how to adjust the daylight savings time settings, but I lost it.  Anyone have theirs?  All i know is it requires that you press an awkward combination of buttons simultaneously, but that's it.

Nov 06, 2007 | Zenith Z230S Clock Radio

5 Answers

Daylight saving time auto change over

call 18006954820 they will walk you through

Nov 02, 2007 | Timex T276B Clock Radio

2 Answers

Emerson Smartset Radio Model CKS2288

The Daylight Saving dates appear to be hard-coded per the manual:

Start of Daylight Saving Time:
At 1:59.59 AM on the first Sunday in April, the clock will automatically advance to 3:00 AM.
End of Daylight Saving Time:
At 2:59.59 AM on the last Sunday in October, the clock will automatically reset to 2:00 AM.

So the easiest thing to do is to change your time zone up or down one for the period between the new DST date and the old -- or you can buy a new SmartSet for about $15. The newer ones do not have the same problem.

Oct 29, 2007 | Emerson Smartset Clock Radio

3 Answers

Turning daylight saving time OFF

If DST is *already* set to "on" when you reset the time zone to Z-07 (Hawaii), my very recent experience is that the time *still gets adjusted back* by one hour.  Now that daylight savings time is over (at least according to the clock's pre-programmed and outdated schedule) I'm hoping that setting the time zone to Z-07 (Hawaii) will completely cancel the automatic time changes from now on.  Otherwise, I need to purchase another clock, and it won't be a Timex.

Apr 02, 2007 | Timex T311T Clock Radio

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