Clue #1 is on FB, TSG is 12 hour difference time zone, which means he could be in (this is just a cut and paste, so I don't know if it covers all options, but is a good starting point.)
Time Zones and contained Regions / Areas -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 EAST TIMOR (Dili)
M|Y X W V U T S R Q P O N Z A B C D E F G H I K L M|Y
INDONESIA (EASTERN- Irian Jaya and the Moluccas / Jayapura)
JAPAN (Tokyo)
KOREA, NORTH (Pyongyang)
KOREA, Republic of (Seoul)
PALAU (Koror)
RUSSIA (ZONE 8- Chita dst, Yakutsk dst, Bladoveschensk dst) http://www.worldtimezone.com/images/new2.gif (moved to time zone UTC+10). Russia set clocks forward 1 hour (no seasonal clock change from 27.03.2011)
RUSSIA (ZONE 7- Irkutsk, Ulan-Ude, Bratsk, Ust'-Ordynsky) http://www.worldtimezone.com/images/new2.gif (moved from time zone UTC+8).
AUSTRALIA (Northern Territory- Darwin)
AUSTRALIA (New South Wales- Broken Hill dst)
AUSTRALIA (South Australia- Adelaide dst)