About Time Synchronization Cluster in Matter,how to use it?

[liisa]

Hello,The Nordic Team

      I have developed a SED product based on the Matter Over Thread protocol. I want to add a real-time time function on the device side. I have learned that it is related to the Time Synchronization Cluster. After enabling the server in Zap, how can I use it in the program?

Best Regards，

liisa

[Edvin]

Hello,

Can you please clarify one thing for me:

Do you have access to the actual time from somewhere in your network? Or do you want this device to act as the source of the Real Time Clock, and want to set the current time, and allow others to read it out from this device?

Best regards,

Edvin

[liisa]

Hi,Edvin

Thank you for your reply. My product is a SED device. My initial idea is to obtain the UTC time from the Controller during the commissioning process. I'm not sure if this approach is correct and I'm also unsure about how to implement it.

Best regards,

liisa

[Edvin]

Hello,

Sorry for the late reply. I have forwarded your question to our Matter team, but I have not heard back from them yet. I will ping my internal ticket, and get back to you once I know more.

Best regards,

Edvin

[Edvin]

Hello,

Do you have access to the Matter specification? The Time Sync clusters introduce mechanisms for Matter nodes to achieve and maintain time synchronization. The time synchronizationcluster provides attributes for reading a node's current time. It also allows Administrators to set the current time, time zone and daylight savings time (DST) settings.

So the node has the Time Sync Server, which indicates the current state of the time synchronization on the node. Apart of it, the Time Sync Client may set the UTC time and other time sync parameters (section command) on the Matter Node, implementing the Time Sync Server. We're not exactly sure what the status of the time Sync Client implementation on the different ecosystems. Apple and Google supports it, and probably Samsung and Amazon as well.

Best regards,

Edvin