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<?xml version="1.0"?>
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<cluster xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="types types.xsd cluster cluster.xsd" id="0x0038" name="Time Synchronization" revision="2">
<revisionHistory>
<revision revision="1" summary="Initial Release"/>
<revision revision="2" summary="Make TrustedTimeSource fabric-aware, add TSC feature, define list max sizes, change writable attributes to commands, remote port, add attribute for DNS support"/>
</revisionHistory>
<clusterIds>
<clusterId id="0x0038" name="Time Synchronization"/>
</clusterIds>
<classification hierarchy="base" role="utility" picsCode="TIMESYNC" scope="Node"/>
<features>
<feature bit="0" code="TZ" name="TimeZone" summary="Server supports time zone.">
<optionalConform/>
</feature>
<feature bit="1" code="NTPC" name="NTPClient" summary="Server supports an NTP or SNTP client.">
<optionalConform/>
</feature>
<feature bit="2" code="NTPS" name="NTPServer" summary="Server supports an NTP server role.">
<optionalConform/>
</feature>
<feature bit="3" code="TSC" name="TimeSyncClient" summary="Time synchronization client cluster is present.">
<optionalConform/>
</feature>
</features>
<dataTypes>
<enum name="GranularityEnum">
<item value="0" name="NoTimeGranularity" summary="This indicates that the node is not currently synchronized with a UTC Time source and its clock is based on the Last Known Good UTC Time only.">
<mandatoryConform/>
</item>
<item value="1" name="MinutesGranularity" summary="This indicates the node was synchronized to an upstream source in the past, but sufficient clock drift has occurred such that the clock error is now &gt; 5 seconds.">
<mandatoryConform/>
</item>
<item value="2" name="SecondsGranularity" summary="This indicates the node is synchronized to an upstream source using a low resolution protocol. UTC Time is accurate to ± 5 seconds.">
<mandatoryConform/>
</item>
<item value="3" name="MillisecondsGranularity" summary="This indicates the node is synchronized to an upstream source using high resolution time-synchronization protocol such as NTP, or has built-in GNSS with some amount of jitter applying its GNSS timestamp. UTC Time is accurate to ± 50ms.">
<mandatoryConform/>
</item>
<item value="4" name="MicrosecondsGranularity" summary="This indicates the node is synchronized to an upstream source using a highly precise time-synchronization protocol such as PTP, or has built-in GNSS. UTC time is accurate to ± 10 μs.">
<mandatoryConform/>
</item>
</enum>
<enum name="Status Codes" type="status"/>
<enum name="TimeSourceEnum">
<item value="0" name="None" summary="Node is not currently synchronized with a UTC Time source.">
<mandatoryConform/>
</item>
<item value="1" name="Unknown" summary="Node uses an unlisted time source.">
<mandatoryConform/>
</item>
<item value="2" name="Admin" summary="Node received time from a client using the SetUTCTime Command.">
<mandatoryConform/>
</item>
<item value="3" name="NodeTimeCluster" summary="Synchronized time by querying the Time Synchronization cluster of another Node.">
<mandatoryConform/>
</item>
<item value="4" name="NonMatterSNTP" summary="SNTP from a server not in the Matter network. NTS is not used.">
<mandatoryConform/>
</item>
<item value="5" name="NonMatterNTP" summary="NTP from servers not in the Matter network. None of the servers used NTS.">
<mandatoryConform/>
</item>
<item value="6" name="MatterSNTP" summary="SNTP from a server within the Matter network. NTS is not used.">
<mandatoryConform/>
</item>
<item value="7" name="MatterNTP" summary="NTP from servers within the Matter network. None of the servers used NTS.">
<mandatoryConform/>
</item>
<item value="8" name="MixedNTP" summary="NTP from multiple servers in the Matter network and external. None of the servers used NTS.">
<mandatoryConform/>
</item>
<item value="9" name="NonMatterSNTPNTS" summary="SNTP from a server not in the Matter network. NTS is used.">
<mandatoryConform/>
</item>
<item value="10" name="NonMatterNTPNTS" summary="NTP from servers not in the Matter network. NTS is used on at least one server.">
<mandatoryConform/>
</item>
<item value="11" name="MatterSNTPNTS" summary="SNTP from a server within the Matter network. NTS is used.">
<mandatoryConform/>
</item>
<item value="12" name="MatterNTPNTS" summary="NTP from a server within the Matter network. NTS is used on at least one server.">
<mandatoryConform/>
</item>
<item value="13" name="MixedNTPNTS" summary="NTP from multiple servers in the Matter network and external. NTS is used on at least one server.">
<mandatoryConform/>
</item>
<item value="14" name="CloudSource" summary="Time synchronization comes from a vendor cloud-based source (e.g. &quot;Date&quot; header in authenticated HTTPS connection).">
<mandatoryConform/>
</item>
<item value="15" name="PTP" summary="Time synchronization comes from PTP.">
<mandatoryConform/>
</item>
<item value="16" name="GNSS" summary="Time synchronization comes from a GNSS source.">
<mandatoryConform/>
</item>
</enum>
<enum name="TimeZoneDatabaseEnum">
<item value="0" name="Full" summary="Node has a full list of the available time zones">
<mandatoryConform/>
</item>
<item value="1" name="Partial" summary="Node has a partial list of the available time zones">
<mandatoryConform/>
</item>
<item value="2" name="None" summary="Node does not have a time zone database">
<mandatoryConform/>
</item>
</enum>
<struct name="DSTOffsetStruct">
<field id="0" name="Offset" type="int32">
<mandatoryConform/>
<constraint type="desc"/>
</field>
<field id="1" name="ValidStarting" type="epoch-us">
<mandatoryConform/>
</field>
<field id="2" name="ValidUntil" type="epoch-us">
<quality nullable="true"/>
<mandatoryConform/>
</field>
</struct>
<struct name="FabricScopedTrustedTimeSourceStruct">
<field id="0" name="NodeID" type="node-id">
<mandatoryConform/>
</field>
<field id="1" name="Endpoint" type="endpoint-no">
<mandatoryConform/>
</field>
</struct>
<struct name="TimeZoneStruct">
<field id="0" name="Offset" type="int32">
<mandatoryConform/>
<constraint type="between" from="-43200" to="50400"/>
</field>
<field id="1" name="ValidAt" type="epoch-us">
<mandatoryConform/>
</field>
<field id="2" name="Name" type="string">
<optionalConform/>
<constraint type="lengthBetween" from="0" to="64"/>
</field>
</struct>
<struct name="TrustedTimeSourceStruct">
<field id="0" name="FabricIndex" type="fabric-idx">
<mandatoryConform/>
</field>
<field id="1" name="NodeID" type="node-id">
<mandatoryConform/>
</field>
<field id="2" name="Endpoint" type="endpoint-no">
<mandatoryConform/>
</field>
</struct>
</dataTypes>
<attributes>
<attribute id="0x0000" name="UTCTime" type="epoch-us" default="null">
<access read="true" readPrivilege="view"/>
<quality changeOmitted="true" nullable="true" scene="false" persistence="volatile" reportable="false"/>
<mandatoryConform/>
</attribute>
<attribute id="0x0001" name="Granularity" type="GranularityEnum" default="NoTimeGranularity">
<access read="true" readPrivilege="view"/>
<mandatoryConform/>
<constraint type="desc"/>
</attribute>
<attribute id="0x0002" name="TimeSource" type="TimeSourceEnum" default="None">
<access read="true" readPrivilege="view"/>
<optionalConform/>
<constraint type="desc"/>
</attribute>
<attribute id="0x0003" name="TrustedTimeSource" type="TrustedTimeSourceStruct" default="null">
<access read="true" readPrivilege="view"/>
<quality changeOmitted="false" nullable="true" scene="false" persistence="nonVolatile" reportable="false"/>
<mandatoryConform>
<feature name="TSC"/>
</mandatoryConform>
</attribute>
<attribute id="0x0004" name="DefaultNTP" type="string" default="null">
<access read="true" readPrivilege="view"/>
<quality changeOmitted="false" nullable="true" scene="false" persistence="nonVolatile" reportable="false"/>
<mandatoryConform>
<feature name="NTPC"/>
</mandatoryConform>
<constraint type="maxLength" value="128"/>
</attribute>
<attribute id="0x0005" name="TimeZone" type="list" default="[{0,0}]">
<entry type="TimeZoneStruct"/>
<access read="true" readPrivilege="view"/>
<quality changeOmitted="false" nullable="false" scene="false" persistence="nonVolatile" reportable="false"/>
<mandatoryConform>
<feature name="TZ"/>
</mandatoryConform>
<constraint type="countBetween" from="1" to="2"/>
</attribute>
<attribute id="0x0006" name="DSTOffset" type="list" default="[]">
<entry type="DSTOffsetStruct"/>
<access read="true" readPrivilege="view"/>
<quality changeOmitted="false" nullable="false" scene="false" persistence="nonVolatile" reportable="false"/>
<mandatoryConform>
<feature name="TZ"/>
</mandatoryConform>
</attribute>
<attribute id="0x0007" name="LocalTime" type="epoch-us" default="null">
<access read="true" readPrivilege="view"/>
<quality changeOmitted="true" nullable="true" scene="false" persistence="volatile" reportable="false"/>
<mandatoryConform>
<feature name="TZ"/>
</mandatoryConform>
</attribute>
<attribute id="0x0008" name="TimeZoneDatabase" type="TimeZoneDatabaseEnum" default="None">
<access read="true" readPrivilege="view"/>
<quality changeOmitted="false" nullable="false" scene="false" persistence="fixed" reportable="false"/>
<mandatoryConform>
<feature name="TZ"/>
</mandatoryConform>
</attribute>
<attribute id="0x0009" name="NTPServerAvailable" type="bool" default="False">
<access read="true" readPrivilege="view"/>
<mandatoryConform>
<feature name="NTPS"/>
</mandatoryConform>
</attribute>
<attribute id="0x000A" name="TimeZoneListMaxSize" type="uint8">
<access read="true" readPrivilege="view"/>
<quality changeOmitted="false" nullable="false" scene="false" persistence="fixed" reportable="false"/>
<mandatoryConform>
<feature name="TZ"/>
</mandatoryConform>
<constraint type="between" from="1" to="2"/>
</attribute>
<attribute id="0x000B" name="DSTOffsetListMaxSize" type="uint8">
<access read="true" readPrivilege="view"/>
<quality changeOmitted="false" nullable="false" scene="false" persistence="fixed" reportable="false"/>
<mandatoryConform>
<feature name="TZ"/>
</mandatoryConform>
<constraint type="min" value="1"/>
</attribute>
<attribute id="0x000C" name="SupportsDNSResolve" type="bool" default="False">
<access read="true" readPrivilege="view"/>
<quality changeOmitted="false" nullable="false" scene="false" persistence="fixed" reportable="false"/>
<mandatoryConform>
<feature name="NTPC"/>
</mandatoryConform>
</attribute>
</attributes>
<commands>
<command id="0x00" name="SetUTCTime" direction="commandToServer" response="Y">
<access invokePrivilege="admin"/>
<mandatoryConform/>
<field id="0" name="UTCTime" type="epoch-us" default="0">
<mandatoryConform/>
</field>
<field id="1" name="Granularity" type="GranularityEnum" default="NoTimeGranularity">
<mandatoryConform/>
</field>
<field id="2" name="TimeSource" type="TimeSourceEnum" default="None">
<optionalConform/>
</field>
</command>
<command id="0x01" name="SetTrustedTimeSource" direction="commandToServer" response="Y">
<access invokePrivilege="admin" fabricScoped="true"/>
<mandatoryConform>
<feature name="TSC"/>
</mandatoryConform>
<field id="0" name="TrustedTimeSource" type="FabricScopedTrustedTimeSourceStruct">
<quality nullable="true"/>
<mandatoryConform/>
</field>
</command>
<command id="0x02" name="SetTimeZone" direction="commandToServer" response="SetTimeZoneResponse">
<access invokePrivilege="manage"/>
<mandatoryConform>
<feature name="TZ"/>
</mandatoryConform>
<field id="0" name="TimeZone" type="list">
<entry type="TimeZoneStruct"/>
<mandatoryConform/>
<constraint type="countBetween" from="1" to="2"/>
</field>
</command>
<command id="0x03" name="SetTimeZoneResponse" direction="responseFromServer">
<mandatoryConform>
<feature name="TZ"/>
</mandatoryConform>
<field id="0" name="DSTOffsetsRequired" type="bool" default="true">
<mandatoryConform/>
</field>
</command>
<command id="0x04" name="SetDSTOffset" direction="commandToServer" response="Y">
<access invokePrivilege="manage"/>
<mandatoryConform>
<feature name="TZ"/>
</mandatoryConform>
<field id="0" name="DSTOffset" type="list">
<entry type="DSTOffsetStruct"/>
<mandatoryConform/>
</field>
</command>
<command id="0x05" name="SetDefaultNTP" direction="commandToServer" response="Y">
<access invokePrivilege="admin"/>
<mandatoryConform>
<feature name="NTPC"/>
</mandatoryConform>
<field id="0" name="DefaultNTP" type="string">
<quality nullable="true"/>
<mandatoryConform/>
<constraint type="maxLength" value="128"/>
</field>
</command>
</commands>
<events>
<event id="0x00" name="DSTTableEmpty" priority="info">
<access readPrivilege="view"/>
<mandatoryConform>
<feature name="TZ"/>
</mandatoryConform>
</event>
<event id="0x01" name="DSTStatus" priority="info">
<access readPrivilege="view"/>
<mandatoryConform>
<feature name="TZ"/>
</mandatoryConform>
<field id="0" name="DSTOffsetActive" type="bool">
<mandatoryConform/>
</field>
</event>
<event id="0x02" name="TimeZoneStatus" priority="info">
<access readPrivilege="view"/>
<mandatoryConform>
<feature name="TZ"/>
</mandatoryConform>
<field id="0" name="Offset" type="int32">
<mandatoryConform/>
<constraint type="between" from="-43200" to="50400"/>
</field>
<field id="1" name="Name" type="string">
<optionalConform/>
<constraint type="lengthBetween" from="0" to="64 bytes"/>
</field>
</event>
<event id="0x03" name="TimeFailure" priority="info">
<access readPrivilege="view"/>
<mandatoryConform/>
</event>
<event id="0x04" name="MissingTrustedTimeSource" priority="info">
<access readPrivilege="view"/>
<mandatoryConform>
<feature name="TSC"/>
</mandatoryConform>
</event>
</events>
</cluster>