11am GMT is 7am EST time.
3 am
11am
From the last Sun. of Mar. to the last Sun. of Oct., 11 AM GMT = 2 PM Eastern European Summer Time (UTC+3).From the last Sun. of Oct. to the last Sun. of Mar., 11 AM GMT = 1 PM Eastern European Time (UTC+2).
11am to 12pm
the last post originated in 1914 but it was first played in 2000
The Last Post is played by a bugler. In the army it is played every night before lights out.
played on the Bugle
At 11AM on the 11th of November, Rememberance Day, in Australia it is customary to observe a minutes silence while a bugler plays "Last Post". This is to commemorate the cessation of hostilities in World War I.
At soldiers funerals
At soldiers funerals
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my royal mail delivers normal post to my house at 10am-11am
The last post
before
The Last Post was played every night before lights out in army camps. Reveille is the one played in the morning.
I'm pretty sure the song you're referring to is called "taps". Generally it's played at Military funerals honoring the dead.*addition* "Taps" would only be part, before the moment of silence, it's "The Last Post" that's played, and then afterwards is when "Taps" is played.