The original whitepaper PDF has this record:

"/CreationDate(D:20090324113315-06'00')"

This suggests that his timezone was UTC-6.

https://en.wikipedia.org/wiki/UTC%E2%88%9206:00#/media/File:Timezones2008_UTC-6.png

Pretty narrow strip

Wikipedia quotes an analysis of his posts that puts him in either UTC-5 or UTC-6.


Besides the date, it also records that he used OpenOffice 2.4.