5.4.2 Configure Time Parameters

Synchronize the Device Time

Synchronize by ToolBox

On the homepage of ToolBox, click Basic Information.
Click to synchronize the time and the time zone.
Put the NFC detection area of the phone close to the NFC antenna of the device. If the time is synchronized successfully, the following page is displayed.

Synchronize by LoRaWAN^® Network Server

Prerequisites: The LoRaWAN^® network server supports the device time synchronization feature.

Limitation: This only supports time retrieval; the time zone is not included.

Set the LoRaWAN^® version of the device to V1.0.3.
Connect the device to the network server. Once the device successfully joins the network, it sends a MAC command to query the time from the network server.

Note: The device will send the DeviceTimeReq command every 5 days since the last sync. You can also send downlink command to ask the device to send the DeviceTimeReq command immediately.

JSON Command: synchronize_time
BACnet: Synchronize Time
Raw Hex Command: Sync Time from LNS

Configure the Time Zone

Configure by ToolBox

On the homepage of ToolBox, click Setting to enter the Setting page.
On the top bar, select Device tab.
On the General page, select Time Zone as required.
Click Write in the lower right corner, and put the NFC detection area of the phone close to the NFC antenna of device. If the configuration succeeds, the following page is displayed.

Configure by Downlink

JSON Command: time_zone, timezone_index
BACnet: Timezone Index
Hex Command: Time Zone, Timezone Index

Configure Daylight Saving Time

Configure by ToolBox

On the homepage of ToolBox, click Setting to enter the Setting page.
On the top bar, select Device tab.

On the General page, enable Daylight Saving Time and configure the related parameters.


Parameter	Description
Start Time	The start time of DST time range.
End Time	The end time of DST time range.
DST Bias	The DST time will be faster according to this bias.

Click Write in the lower right corner, and put the NFC detection area of the phone close to the NFC antenna of device. If the configuration succeeds, the following page is displayed.

Configure by Downlink

JSON Command: dst_config
Raw Hex Command: Daylight Saving Time

Configure Time Zone Offset

The device supports adding an offset to the current time for flexible time adjustment.

Note: After setting this offset to a non-zero value, Daylight Saving Time will be disabled, and vice versa.

Configure by Downlink

JSON Command: timezone_offset
BACnet: Timezone Offset
Raw Hex Command: Time Zone Offset