pmLocaltime - convert the date and time for a reporting timezone
struct tm *pmLocaltime(const time_t *clock, struct tm *result)
cc ... -lpcp
pmLocaltime is very similar to localtime(3), except the timezone used
is the current ‘‘reporting timezone’’ (rather than the default TZ
environment variable scheme), and the result is returned into a caller-
declared buffer (rather than a private buffer).
Like localtime(3) the time to be converted is passed via clock, and the
result contains the components broken out in the elements of the tm
pmLocaltime returns result as the value of the function.
The default current reporting timezone is as defined by the TZ
environment variable, so pmLocaltime and localtime(3) will initially
produce a similar encoding of the date and time.
Use pmNewZone(3), pmNewContextZone(3) or pmUseZone(3) to establish a
new current reporting timezone that will affect pmLocaltime but not
localtime(3), PMAPI(3), pmCtime(3), pmGetConfig(3),
pmNewContextZone(3), pmNewZone(3), pmUseZone(3), pcp.conf(4) and