Looks like someone didn't read the article :) If you normalize to UTC for some future date with a timezone in Lower Left Elbonia Standard Time (GMT+7:42), and

Looks like someone didn't read the article :) If you normalize to UTC for some future date with a timezone in Lower Left Elbonia Standard Time (GMT+7:42), and the Elbonian Revolutionary Army successfully form an overnight junta, retroactively declaring the country's timezone to be Free Peoples' Elbonia Revolutionary Time (GMT-12:00), suddenly your DB rows make no sense whatsoever. The absolute point in time relied on future knowledge that did not yet exist, that invalidated any previous estimate of when it would occur. An external timezone reference (the Olsen DB) must be continually updated and separately referenced