Eclipse, Aug. 21, 2017: how long was totality where I was?

Factual Questions
1

I was in Prairie Home, MO for the eclipse. Totality seemed to last less than a minute there. How can I find out how long it actually lasted?

J.

2

This site says 2 minutes and 36 seconds.

3

Yeah, and that’s really hard to believe. It seemed to be over so fast. This reinforces the fact that our perception of time is so relative.

Thanks,
J.

4

Hmm. This online calculator claims an extra 3 seconds, or nearly 2m38s, if one takes into account the lunar limb profile.