Don't forget that swear-in time is at noon EST on Friday, folks!
Wished I had come to this realization sooner, but about 15 minutes ago, I realized that you know, "Sestak wrote this" and his fetish for DST is well established.
Sure enough it explicitly says new constitution takes effect at Eastern Daylight Time.
1. Except as otherwise specified within this article, the provisions of this constitution, once ratified by two thirds of the regions, shall take effect and supersede the Fourth Constitution at noon Eastern Daylight time on the Second of July in the year two thousand and twenty-one.