All GAE servers have GMT/UTC as there current time.
The times across different servers may very a few seconds because they
are distributed.

2009/8/20 herbie <[email protected]>:
>
> How do I calculate the elapsed time since model instance was first
> stored in the datastore.    My model has a property like this:
>
> date_added = db.DateTimeProperty(auto_now_add=True)
>
> So according to the docs, date_added is set to the current time the
> first time its put().  But what is the 'current time'?  Is it the just
> the system time of whatever server the app instance is running on?
>
> Or is there a synchronised datastore 'current time' so that something
> like  elapsed_time = 'current time' - date_added  will always return
> the correct value irrespective of whatever server it is running on?
>
> Thanks

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