packages to get system time
<time.h> header declares the structure
tm, which includes at least the following members:
int tm_sec seconds [0,61] int tm_min minutes [0,59] int tm_hour hour [0,23] int tm_mday day of month [1,31] int tm_mon month of year [0,11] int tm_year years since 1900 int tm_wday day of week [0,6] (Sunday = 0) int tm_yday day of year [0,365] int tm_isdst daylight savings flag
The perl package
Time::localtime lets you access this data from perl. Here is the package.