IfcTimeStamp

BACnet MVD

#### IfcTimeStamp

Natural language names

| Time Stamp
| Horodatage

Change log

Item | SPF | XML | Change | Description
--- | --- | --- | --- | ---
IFC2x3 to IFC4
IfcTimeStamp |  |  | MOVED | Schema changed from IFCMEASURERESOURCE to IFCDATETIMERESOURCE.

##### Semantic definitions at the type

Type definition

IfcTimeStamp is an indication of date and time by measuring the number of seconds which have elapsed since 1 January 1970, 00:00:00 UTC.

Type: INTEGER

> NOTE Defined in IEEE Std 1003.1.

> HISTORY New type in IFC1.5.1.

##### Formal representations

XML Specification
`<xs:simpleType name="IfcTimeStamp">
<xs:restriction base="xs:long"/>
</xs:simpleType>
`
EXPRESS Specification
`TYPE IfcTimeStamp = INTEGER;
END_TYPE;

EXPRESS-G diagram

`

References: IfcSimpleValue IfcOwnerHistory

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