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Hmmmm.... I must be misunderstanding something then.
Let me try to explain what I mean, in a hope that you can help me see where I am going wrong.
There are three observers, 1, 2, and 3.
Obs1 is 10 light minutes away from you, obs 2 is 20 light minutes away and obs 3 is 30 light minutes away.
You are travelling at the speed of light, and at exactly 10.00am you turn on your lights.
Because you are travelling at the speed of light, none of the observers can see you until you pass them. They cannot see your lights until then either as you and the photons are travelling at the same speed.
It takes 10 minutes for you and the photons from your lights to reach obs1, therefore he says you turned your lights on at 10.10am.
It takes 20 minutes to reach obs2 so he says 10.20am is the time you turned them on.
Likewise obs3 says 10.30am is when you turned them on.
So between you and the three observers you have four different times for the same event. Each of you is correct, as your measurements were made relative to your position in time-space.
The difference is, similar to the way the deeper into space you look, the further back in time you go, obs1 is looking 10 minutes back in time obs2 20 minutes and obs3 is looking 30 minutes back in time. But relative to their positions the event happenned at the times they have stated.
This is how I understood the process, but would like to get it right, so please point me in the required direction.
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