As a fixed income novice, I am trying to wrap my head around the conversion of US Treasury par yield rates to spot rates (zero-coupon rates) using exact US market conventions. Take the par yield curve here: Resource Center | U.S. Department of the Treasury
If you want to associate a maturity date to "1 mo", say on Jan 29, 30, or 31 -- what is the market convention?
Is this convention universal?
Thanks!