CODEWITHSUNDEEP
datedatetime
Norman
Norman

Reputation: 6365

What Date Time Format is this?

What date time format is this : 735715:37344280

<ExecDateTOD Friendly="Monday April 27, 2015 10:23:00am">735715:37344280</ExecDateTOD>

It's found in C:\Windows\Performance\WinSAT\DataStore\file_name.xml, and is the date time when the Windows Experience Index Assessment test was run.

Any idea how it's structured and can be edited? I need to change it to a previous years Date.

Upvotes: 2

Views: 327

Answers (3)

jcoppens
jcoppens

Reputation: 5440

I think that if you subtract 365 from that number, you'll be in previous year.

That number seems to be days since the year 0. The first part might be the number of days, taking into account leap years, etc). The second part the time coded in some way.

Upvotes: 0

Tim Biegeleisen
Tim Biegeleisen

Reputation: 520978

For the timestamp 735715:37344280

The first number (the one before the colon) is the number of days since the year 0:

735715 / 365 = 2015.66

The second number (the one after the colon) is the number of milliseconds that have passed within the current day.

37344280 / (1000*60*60) = 10.37 hours since start of day

So you can just subtract 365 days from the first number to obtain the previous year like this:

<ExecDateTOD Friendly="Monday April 27, 2014  10:23:00am">735350:37344280</ExecDateTOD>

Note that there were no leap years in either 2015 or 2014, so these year are exactly 365 days long.

Here is a link to a page with another <ExecDateTOD> tag where you can compare: http://www.scribd.com/doc/82935159/2012-01-30-16-00-49-986-Formal-assessment-Recent-WinSAT#scribd

Upvotes: 1

Thresh
Thresh

Reputation: 943

It seems that this format is called VariantTime, in MSDN the call to convert time is called VariantTimeToSystemTime. So it may be number of days, with decimal part after the :.

Upvotes: 1

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