people have gone through the many time zone indicators provided with different communications of Satoshi; many are obscured, many use anonymizers (like the email client), there's indicators on when he was active. activity research - https://medium.com/@insearchofsatoshi/the-time-zones-of-satoshi-nakamoto-aa40f035178f time stamp research - https://www.cryptovantage.com/news/did-satoshi-nakamoto-live-in-london-does-it-even-matter-to-bitcoin/ it's been poured over endlessly.