Partial eclipse begins at 2:27 UTC on May 16 (10:27 p.m. EDT on May 15). Totality begins (moon engulfed in Earth’s shadow) at 3:29 UTC on May 16 (11:29 p.m. EDT on May 15). Totality ends at 4:53 UTC on May 16 (12:53 a.m. EDT). Partial eclipse ends at 5:55 UTC on May 16 (1:55 a.m. EDT).