Spamage's votes denied though his vote was cast 10 minutes before the deadline. This does alter the election results.
No, no it was not. Voting booth opened at 08:04:47 pm, closed 72 hours later. Spamage casts his vote at 08:49:11 pm. He's past the deadline. Nothing ambiguous about it. I obviously have no desire (I like higher turnout) to disallow his vote but it's completely clear cut. JCL's math does not add up.
I think the confusion is that you defined the period of the election in Standard Time when we are now in Daylight Savings. I thought it was ending at 5 PM my time, not 4 PM.