We prove the leading order of a conjecture by Fyodorov, Hiary, and Keating about the maximum of the Riemann zeta function on random intervals along the critical line. More precisely, as T → ∞ for a set of t ∊ [T, 2T] of measure (1–o(1)) T, we have
max|t−u|≤1log|ζ(12+iu)|=(1+o(1))loglogT.
© 2018 Wiley Periodicals, Inc.