This is from the Disney website
EMH
Mornings:
Discovery Island Trails (AM only), It's Tough to be a Bug!®, Kilimanjaro Safaris**, Pangani Forest Exploration Trail® (AM only)
Evenings:
Includes attractions listed above and The Boneyard®, DINOSAUR, Festival of the Lion King, Kali River Rapids, Primeval Whirl®, Tarzan Rocks!, TriceraTop Spin
** Please note that the evening Kilimanjaro Safaris offering closes at 7pm and fluctuates with daylight hours.
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So as it gets later into the year, the earlier it will close.