Guccifer 2.0 left behind far more evidence of activity occurring within US timezones than most people realize.
Details for each of the time zones with links to the relevant research/discoveries made in the past two years follows below.
(If any further indicators of activity in US timezones are discovered, this page will be updated.)
For the West Coast we have an indication of activity with PDT time zone settings in effect:
In the Central timezone we have an email, social media activity, blogging activity, a time offset in a ZIP file and offsets identified through differences in 7z/RAR timestamp storage conventions:
For the East coast, we have indications that come from 7z/RAR timestamp storage convention differences as well as indication drawn from 2 separate files published by Guccifer 2.0:
What About Russian Time Zone Indicators?
For a thorough analysis of Guccifer 2.0's Russian origin indicators, check out Forensicator's article: "Guccifer 2's Russian Breadcrumbs"