[Tallguy]

Sorry, I do not believe this quite.

Now that you mention it, isn't this what "Zulu Time" is for? Once in flight it seems that the only time that is relevant is GMT (Zulu). Am I right?

[RightWhale]

Sure, but there is still the International Date Line.

[geopyg]

Back when Amelia Earhart was flying around the world, the island she was trying to land on (Howland Island) was on a 1/2 hour shifted clock. The Navy ship a few miles off Howland was using a clock referenced to Hawaii time and was on an hour shift. (Ship time was 1100, island time 1130 or something). I forget what clock Earhart was using, but it was an hour shifted - perhaps referenced to Papau New Gueani (sp) Time

The ship had higher freq. communications and would attempt to contact Earhart at 15 min. and 45 min. past the hour, while the island had low freq. communications and would try contacts at the hour and half hour.

Earhart had to switch between the frequencies at the proper times, plus trying to use a tracking beacon frequency..

They figure the miscommunication of the time was one of the numerous problems that led to Earhart missing Howland Island. Based on the investigation of the Earhart disappearance everything military and shipping, etc. went over to GMT.

[ryan71]

I think you're correct. Local time is irrelevant.