History of Using the User Timing API Revision history for: English (US) Dec 17, 2015, 2:17:45 PM stephaniehobson Editorial review completed. Previous Dec 17, 2015, 2:17:33 PM stephaniehobson Dec 13, 2015, 8:58:53 AM AFBarstow New "Using the User Timing API" Guide for the User Timing standard