Issue #10049 has been reported by Tsuyoshi Sawada. ---------------------------------------- Bug #10049: RDoc bug for time format https://bugs.ruby-lang.org/issues/10049 * Author: Tsuyoshi Sawada * Status: Open * Priority: Normal * Assignee: * Category: * Target version: * ruby -v: 2.1.1 * Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN ---------------------------------------- A bug report https://bugs.ruby-lang.org/issues/8941 notes a contradiction between RDoc and Ruby behavior. If tadayoshi funaba is correct and `%Y` should be able to accept digits less than four, then the following RDoc description is a bug, and should be corrected. %Y - Year with century (can be negative, 4 digits at least) -- https://bugs.ruby-lang.org/