October 31st last chance for perpetual maintenance, what time zone is Oct 31st?

[Rectro30]

Hi

Im in the Uk and its getting closer to the deadline for the last chance to add a maintenance to my perpetual licence on Oct 31st 2020.

As I dont want to miss it or add it a day early what time zone falls within the 31st as to when I should purchase it.  I dont want to lose a day in case a last update under that maintenance comes out 31st Oct 2021 when mine would expire 30th?

Thanks,

Dan

[tgm79]

I'm not an authority on this issue but my first guess would be wherever the Adobe headquarters is located. San Jose, California, United States. Or maybe wherever Algorithmic headquarters is.