ModifiedDate value in project.xml of .egp file

[dougcrites]

We are trying to understand the format of the date fields of  the tags CreatedOn and ModifiedOn in the project.xml file of the .egp.

        <Element Type="SAS.EG.ProjectElements.EGTask">
            <Element>

. . .

                <Type>TASK</Type>
                <Container>1df71fd1-5333-41f1-94e0-031f3e35aa71</Container>

     ....

                <CreatedOn>633239148246822370</CreatedOn>
                <ModifiedOn>633252968775056542</ModifiedOn>

It is not the normal SAS date time value which is the number of seconds since Jan 1, 1960, as this is too large a value for that.

Does anyone know how to interpret and convert these date values?

[ChrisHemedinger · Accepted solution]

First, usual caveats for spelunking into the project file: not documented by SAS, and subject to change.

Next:

I think it's a Microsoft datetime value (as EG is a Windows app), and that's the number of ticks since Jan 1, 0001 AD.  Big number!  More here in this blog post, including how to convert to SAS.

[dougcrites]

Thanks for such a quick response.. much appreciated!