The duration of Nature's Great Events is 3000.0 seconds.
The duration of Chain of Events is 1.03 hours.
The duration of Train of Events is 1.5 hours.
The duration of The Great Silence is 1.75 hours.
The duration of Great White Death is 1.47 hours.
The duration of The Event is 2580.0 seconds.
The duration of The Great Revival is 2700.0 seconds.
The duration of Tobor the Great is 1.28 hours.
The duration of The Great Commandment is 1.3 hours.
The duration of Great Hotels is 1800.0 seconds.
The duration of Isn't She Great is 1.58 hours.
The duration of The Great Morgan is 3420.0 seconds.
The duration of The Great Gabbo is 1.57 hours.