The Time Zones of Satoshi Nakamoto

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An early draft of the Bitcoin paper from October 2008 has the following information in its metadata:
64 0 obj
</Producer
/CreationDate(D:20081003134958–07’00’)>>
endobj
A later draft, the one published at https://bitcoin.org/bitcoin.pdf has the following:
67 0 obj
</Producer
/CreationDate(D:20090324113315–06’00’)>>
endobj
Together the timestamp values 20081003134958–07’00’ and 20090324113315–06’00’ demonstrate that the computer used to export the paper to PDF had its clock time set to use the ‘Mountain Time Zone’ of the United States. The difference in offset between the two “-07’00’” and “-06’00’” represents the application of Daylight Savings Time. In the United States Daylight Savings Time starts on the second Sunday of March and the offset to UTC is changed from -7 to -6. So the use of the offset -6 for the date of 2009–03–24 is correct. However in the United States DST continues from the second Sunday of March to the first Sunday of November, so it is surprising to find that on 2008–10–03, while DST is still observed in the Mountain Time Zone, the offset given in 20081003134958–07’00’ is for Standard Time, rather than Daylight Savings Time. There may be a good explanation for this, Satoshi may have moved from the Pacific Time Zone some time after October 2008 to the Mountain Time Zone while working on Bitcoin and adjusted the time on his computer accordingly, or there may have been a bug in OpenOffice 2.4 or even WIndows XP that affected the reporting of MTZ times. I have not been able to find any special-case treatment of timezones that would apply to that period. The other possibility is that Satoshi was manipulating the timezone on his computer to avoid identifying his timezone in the metadata of the PDF file — however this seems unlikely as he could have just removed the metadata completely without affecting anyone’s ability to open and read it, though this would have the disadvantage of not misleading people into thinking he was in the United States.

POD Research: Interesting Read:
https://medium.com/@insearchofsatoshi/the-time-zones-of-satoshi-nakamoto-aa40f035178f

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