How do I change date and time on a Honeywell L5200?

In order to change the date and time on the Honeywell L5200 LYNX Touch alarm system you need to access the master or installer programming menu by pressing the following sequence of icons.

Master Programming: Security + More (bottom right corner) + Tools + Master Code (Default is 1234) + Date Time

Installer Programming: Security + More (bottom right corner) + Tools + Installer Code (Default is 4112) + Program + Date Time

First select the proper month and year. Then press the down key on the right hand side. Clear the time and type in the correct time. Ensure the AM/PM is correct as well. Then press the down key again (do not save yet!). Lastly, choose the proper time zone and turn on "Daylight Savings Time" if you live somewhere that operates with it. Choose the second week in March as the "Start Month" and the first week in November for the "End Month." Now you can save!

After you save, you back out of programming to the main menu. It is always a good idea to verify that the time and date are now showing properly atop the home screen. If not repeat the steps above and ensure that you save.

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