On Wednesday, September 4, 2019 at 1:58:59 PM UTC+1, Ian Jackson wrote:

After a bit of Googling, it appears that it's only the first day of
Sukkot when work is forbidden (it's treated like the normal Jewish
Sabbath) - and this isn't the day proposed for the election. The whole
thing's not even a light breeze in a thimble.
https://tinyurl.com/y4g5ap72

Not quite. If you read the link, it's the first two days when work is forbidden, and that's sundown on the 13th to nightfall on the 15th. Moving the dates leaves about three hours of voting time on the 15th.