Getting LOST in Time - More on Time in LOST Season Five
A quick quote about the issue of time in the upcoming fifth season of Lost:
There will still be flashbacks and flashforwards, but there will be equally other ways of telling the story, something totally new in the series. In the first episode, you will neither know what time period the action is taking place in, nor where the action is happening. The scenes will take place on the island and in different parts of the world and at different time periods according to the characters.
[Found at DarkUFO Spoilers]