Time zone conversion C API on Linux, anyone?

Question

I\'m looking for something that I presumed would be very simple - given local Unix time in a specific time zone (specified as a string, e.g., \"America/New_York\" - note tha

Answer 1

Similar to the Python answer, I can show you what R does:

R> now <- Sys.time()       # get current time
R> format(now)             # format under local TZ
[1] "2009-08-03 18:55:57"
R> format(now,tz="Europe/London")   # format under explicit TZ
[1] "2009-08-04 00:55:57"
R> format(now,tz="America/Chicago") # format under explicit TZ
[1] "2009-08-03 18:55:57"
R> 

but R uses an internal representation that extends the usual struct tm --- see R-2.9.1/src/main/datetime.c.

Still, this is a hairy topic and it would be nice if it were the standard library. As it isn't maybe your best bet is to use Boost Date_Time (example)