Going by the DNS records, I'd say the 11th of Never.
[tuna@portatuna ~]$ dig +trace sun.
; <<>> DiG 9.9.2-P1-RedHat-9.9.2-3.P1.fc17 <<>> +trace sun.
;; global options: +cmd
. 19637 IN RRSIG NS 8 0 518400 20130409000000 20130401230000 20580 . uiDvuJQF0c/QyaUoX9VjqGx3a1bpJZNLwBO47pdgAbu/LfuIwC/GzfoZ +SZLvPrOfbtuvmxPCgwUJ7Js5eK/nj4l0pNAym5oKhnACgTXGD3yf/zI fv4UOCYs974M23lN8SPU85daqErRn6I3rPJqc+l4Yu5ZTWKUIA52QZQz QOg=
;; Received 397 bytes from 8.8.8.8#53(8.8.8.8) in 480 ms
. 86400 IN RRSIG SOA 8 0 86400 20130409000000 20130401230000 20580 . yEgBAKUym3kEBRV7Zb7+x0T8un11yx9ZR4uTVKvQFgN5S4g9TNjcbSi3 j7sTa5A7wJfMEeRy79gnNUqYWcLIfEYfCwvORBOAdYhIfBSDwW4Q/+8K eddwp+XlNHwB8NvdMV66xmW5XAQyJof9g2lMRLXjo2Z7EEwgHEqIxYBT kaU=
. 86400 IN NSEC ac. NS SOA RRSIG NSEC DNSKEY
. 86400 IN RRSIG NSEC 8 0 86400 20130409000000 20130401230000 20580 . nOQkR/HEDvTnurtvcsfU+Vyp6T47knN4U0ew09QCVrE0qx7+ceX1hHuW Q8pU+wDW7oQ4dxDQyJu4gTLtevEMl/LtNmuu1/H0YMyt5iALOo7wvSo+ hRGmNC2euSDRF5r86JV/Y/eLsXMRvHHaYYWd/aScbVfA7rNOpSNilvF3 pwU=
su. 86400 IN NSEC sv. NS DS RRSIG NSEC
su. 86400 IN RRSIG NSEC 8 1 86400 20130409000000 20130401230000 20580 . TyKRtonUXUMoyNMRdswgiYkD4qg8ixoz/f8S4dtrAsinieuwYQG2RZq/ eOVSurJTogvk0Z7np3c0VDIBE3+ZUSkhV08xweJVrd0vTX/jNNqbCIcg ERw5H9AK82wD13twwh0vZpDc1e7nHEphTZQv2pq9GUL566TEpOuoh2Fv dd8=
;; Received 632 bytes from 192.5.5.241#53(192.5.5.241) in 67 ms