I’ve just become aware of the fact that almost all the Visits per Server Time reports I view are offset by -3 hours. Oddly, if I use today or yesterday as my date range, then the reported activity for any given hour is correct. Apart from knowing the general usage pattern of my site, I also am checking with Google Analytics and an old in-house tracking tool to confirm that these Piwik reports are wrong.
My server timezone is UTC, and my site is configured in Piwik to Eastern Time (-5 New York).
A couple of days ago I did experiment with changing the site’s timezone, trying several different ones from across the globe, just to see how it affects the reports and the API results. I was sure to reset everything back to the proper settings when I was done. I am wondering if doing that may have somehow adversely effected Piwik’s data. It’s a long-shot, but I just can seem to figure this out.
Has anyone else ever experienced any problem similar to this?