I gave my daughter's current age when naming a reservation. She will be a year older by the time we board in June. Do I need to change the date in your system? How?

SOURCE: HOw to change time and date and names

Setting date and time is an administrator function-you cannot do this from your desk phone. The administrator needs to go into voice mail service-enter mailbox # and passwords-to the #2-schedule-choose1 update system date and time.

Aslo to change the name labels for an extension is an administrator function. From mail console-choose- Menu-Sys program- Exit -More- Labeling- Directory-Extension-Enter extension #-Use letters on screen and letters on switchboard phone –letters in red on labels to enter name. Somewhere you should have a "letter key" in the Voice Mail manual, IF your administrator doesn't have them written on the console phone. Each letter is assigned a 2 digit number to spell out their last name or dept, whichever label you want.
Letter key:
A=21 B=22 C=23 D=31 E=32 F=33 G=41 H=42 I=43 J=51 K=52 L=53 M=61 N=62 O=63 P=71 Q=74 R=72 S=73 T=81 U=82 V=83 W=91 X=92 Y=93
GOOD LUCK!

SOURCE: Can't find my manual and need to reset the date and time

if system DK series must set at port "00"
#402 to check the port number with displayed phone
#651 DDMMYY - for date
#652 HHMMSS - for time
#653 to change the day

SOURCE: Cindy is 5 years older than Alex and 7 years older than peter sum

Three unknowns with three equasions:
cindy is 5 years older than alex. write it as c = a + 5
cindy is 7 years older than peter. write it as c = p + 7
The sum of their ages is 21. write it as c + a + p = 21
first solve for peters age in terms of alex's age.
c = p + 7 or
(a + 5) = p + 7 or
p = (a + 5) - 7 or
p = a - 2
substitute in and solve the equasion:
(a + 5) + a + (a - 2) = 21 or
3a + 3 = 21 or
3a = 24 or
a = 8

c = a + 5 or
c = 8 + 5 = 13

c = p + 7 or
p = c - 7 or
p = 13 - 7 = 6

cindy is 13, alex is 8 and peter is 6
This is called simultaneous equasions and will always work if you have the same number of unknowns as you have equasions (or relationships).

SOURCE: System Date Problem in EEE PC 1005HA

As if you have tried changing the date & time in your control panel plus BIOS.There is nothing left to be done regarding changing date & time.
But If your CMOS battery in the motherboard fails,it will always goes back to it deafult date & time.Replace the battery and it will solve your problem.

I recommend to use Sony Lithium Battery

SOURCE: Need to program new & reprogram older handsets

how to retrieve the password?