resolution fails when the date of the server is more than 2 days late

[Jan-Piet Mens]

>$ dig A +answer +nocmd +nomultiline +nocomments 0.pool.ntp.org 

Aren't you also obtaining NS and additional records? I haven't checked, 
but I assume those aren't NTP servers. If my assumption is accurate, 
this seems simpler:

$ dig A +short 0.pool.ntp.org 

	-JP