Creating a time server

BACnet provides the following services for time synchronization:

• TimeSynchronization Service
• UTCTimeSynchronization Service

bacnet4j provides both services, but note that other vendors or devices may not support time synchronization in general or UTC time synchronization.

To send a time synchronization request (which means, all devices in the network will be synchronized to the specified time), use the following code lines:

com.serotonin.bacnet4j.type.constructed.DateTime time = new DateTime(System.currentTimeMillis());
TimeSynchronizationRequest request = new TimeSynchronizationRequest(time);
localDevice.sendGlobalBroadcast(request);