IFC 4.4.0.0 build 20261005 (IFC4X4_DEV_20260525) ⚠ buildingSMART Working Draft. All content is under development.

  • Help suggest improvements
  • Get user or developer support

8.5.3.11 IfcTimePeriod

8.5.3.11.1 Semantic definition

IfcTimePeriod defines a time period given by a start and end time. Both time definitions consider the time zone and allow for the daylight savings offset.

A time period is defined by a start and an end time, which is defined by IfcTime. The given time period should be within reasonable values (for example, the start time must be before the end time). It is furthermore expected that both time definitions use the same time zone and, if given, the same daylight saving offset.

8.5.3.11.2 Entity inheritance

8.5.3.11.3 Attributes

# Attribute Type Description
IfcTimePeriod (2)
1 StartTime IfcTime

Start time of the time period.

2 EndTime IfcTime

End time of the time period.

Table A

8.5.3.11.4 Formal representation

ENTITY IfcTimePeriod;
StartTime : IfcTime;
EndTime : IfcTime;
END_ENTITY;

8.5.3.11.5 References

Edit on Github

3 contributor(s): ArturTomczakDion MoultbSI-Bot
Last change: Improve definition split (#876) * bring back headers headers were previously removed by mistake, now bringing them back * add new lines and rename the tag add the word 'short' in it * unify newlines make exactly one newline before and two after the tag * resolving typos Because bringing back headers required to go back in time to previous version, I'm now re-resolving the issues: #861, #860, #856 by ArturTomczak on 2024-07-16T16:07:28+02:00

Is this page difficult to understand? Let us know!

8.5.3.11.6 Changelog

8.5.3.11.6.1 IFC4

  • New resource