Is it possible to extend the time period of a poll once it has been established?

[Le Ministre de l'au-delà]

The question is in the title - once a poll is established with an end time, is it even possible to extend that time period?

[Czarcasm]

If you set up a test poll, we can find out, o.k.?

[Le Ministre de l'au-delà]

Okay, I don't know how I f*cked that up, but I f*cked that up. I'll start another thread; this one can be closed as soon as you guys get through laughing at me...