How do change time by one hour say 2.30 to 3.30 7020 phone

Turn your phone or tablet off and then on again - this will fix the problem in most cases.

Ross K

how do I change the time on the phone from 24 hour clock to 12 hour clock

How do I change the Time and Date on a Merlin Legend system?
To change either the Date or the Time on the Legend system, you must program it from the main System Programming console (MLX-20L). This will change the Time or Date on all the display phones throughout the system, except the ATL (Analog) display sets. These phones must be programmed on each individual set.
How to change the Date in the Legend system:

1. Press Menu.
2. Press System Program.
3. Press Exit.
4. Press System.
5. Press Date.
6. Enter date in following format: mmddyy (where MM is the month, DD is the day, and YY is the year).
7. Press Enter.
8. Press Exit.
9. Press Home to exit programming mode.

How to change the Time in the Legend system:

1. Press Menu.
2. Press System Program.
3. Press Exit
4. Press System.
5. Press Time.
6. Enter the time in military/24 hour format: HH:MM (where HH is the hour, 01-24, and MM is minutes, 00-60).
7. Press Enter.
8. Press Exit
9. Press Home to exit programming mode.

Step 1
Press the FEATURE key followed by **8463
Password Retry Step 2
Press 266344 on the dial pad buttons to enter the DEFAULT password. Your password MAY BE DIFFERENT! The display will show the following options:
Hour: 01 Next Change Step 3
Select CHANGE - the display will show the following options:
Hour: __ Cancl Step 4
Use the dial pad buttons to enter the hour. You must use two digits for all hours (i.e. "08" for 8 o'clock). You will be prompted to enter AM or PM. Select CHANGE and OK to choose PM. AM OK Change Step 5
After you have entered the hours, select NEXT. The display will show minutes as 00. Use the dial pad buttons to enter the minutes. If you are just changing the time, press the RELEASE (RLS) button to end your session. The time will be changed and the date will remain the same.
If you want to change the date, select NEXT.
Minutes: 00 Next Change Step 6
The display will show 99 as the year. Using two digits, enter the year using the dial pad buttons (i.e. "05" for 2005).
Select NEXT, and repeat to change the month and the day.

Year: 99 Next Change Step 7
Once you have entered the day, press the RELEASE (RLS) key to end your session. This will save the changed time and date.

Some advice from the Avaya support web site: How do I program System Time? To program the System Time on Basic Partner Release 4.1:
This System Programming procedure sets the time that appears on system display phones.
Enter the time in 24-hour notation. In this scheme, the hours of the day are 0000 (12 midnight) to 2359 (11:59 p.m.). Since each time must have four digits, use leading zeros when necessary. For example, to set the time to 9:00 a.m., enter 0900. For 4:45 p.m., enter 1645.
The time appears on system display phones as a.m. or p.m. (not in 24-hour notation).
To change the System Time using a display phone at extension 10 or 11:
Press Feature 00. Press System Program (Left Intercom button). Press System Program (Left Intercom button). Press # 103. Enter the time in 24-hour notation. For example, to set the time to 2:15p.m., press 1415. A display similar to the following appears:
System Time Data 1415 Note: The time will appear on system display phones as 2:15p.
Select another procedure or press Feature 00 to exit programming mode.

1. Press [DN] + #652 with the handset onhook.
2. Enter the time (HHMMSS) in the 24-hour clock format.
3. Press redial
4. Press speaker.

This can only be done from the programming phone (usually reception).

To set date and time on your phone system you must first enter user programming mode.
Using a display phone with the receiver hung up.
Press PROGRAM
Dial ** 1234 (SYS PROG NO)
Dial 000 (DATE AND TIME)
Press SP-PHONE key once (display shows current date)
Normally this is correct if not dial the changes in with your keypad. Use the FWD\DND key to
move forward on the display and the CONF key to move backwards.
Press AUTO DIAL STORE (Confirmation tone)
Press SP-PHONE key once (display shows current time flashing on hour)
Dial new hour (Two digits) Use the FWD\DND key to move forward on the display and the
CONF key to move backwards. Dial in any changes and when your done:
Press AUTO DIAL STORE (Confirmation tone)
Press HOLD (SYS PROG NO)
Press PROGRAM
Your phone should be back to normal.

First to change the clock to a 12 hour instead of a 24 hour requires a bit of CAUTION. You have to go into the technician level of programming so be careful. From a display phone, Press #, ( Programming ) is displayed, enter 20, ( MMC Disabled ) is displayed, enter password ( 1 2 3 4 is default ), enter function 4 for 12 hour clock, enter # to exit. If the time and date are displayed wrong you have to go to # 55 and reset time and date.
YY MM DD W HH MM format. W = Day of week with 1=Monday and HH MM must be entered in Military time even though you have a 12 hour clock set. Good Luck

generic for all phones... the standard way to change the time and show it on screen is simply going to the settings and look for time settings... in here, you can actually change the time, the date , and the year and you can also change the time format form 12 hour to 24 hour.

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.