http://www.associatedcontent.com/article/605527/lost_in_time.html
The helicopter NEVER arrives on Regina's Freighter? It crashed?
Or Regina is lying!Daniel has Regina launch a small missile with a payload of a digital clock from the freighter to the island. Regina counts down 20 seconds for the missile to land on the island according to her observations. After a long delay, the missile finally lands for the island observers and Daniel is worried that one clock is slower than the other by a half hour.
In season 2, episode 23, "Live Together, Die Alone", Desmond was unable to sail away from the island and bewailed that "We are stuck in a bloody snow globe." Daniel warns the helicopter pilot, Frank, to take the same exact heading with severe gravity in his voice.
http://www.associatedcontent.com/article/605527/lost_in_time.html
Read about how time can be explained by the Minokoski diagram that describes a shear instead of a rotation of space-time.