how to extract current/existing timezone information ??
i am not sure whether this is ur requirement
echo $TZ
would retrieve current timing zone
else if you are specific abt zoneinformation
check in
/usr/share/lib/zoneinfo/
What file is used varied from system to system and this is the c programming forum. The various date/time routines call tzset() to get the timezone info and you can call it directly. Then, the external variables timezone, daylight, and tzname should contain the timezone info. See "man tzset".