Currently 377 days. At my old house the city infrastructure was old, so there were power outages all the time. At my new house we have lost power a few times, but it get restored in seconds or minutes. Definitely less than 5 minutes, so the UPS keeps it going. It may be time to update to 6.10
You should just buy the one from Amazon, then return it as soon as the EK block gets in. Amazon is awesome about returns! Just make sure it says "ships and sold by Amazon". You can compare the numbers.
@gilahacker They just posted a review of 3 Noctua coolers if you feel like a read. http://www.guru3d.com/news-story/review-noctua-nh-u9u12su14s-tr4-sp3-threadripper-coolers.html