Hi, I stumbled over an inconsistency in the Boost::DateTime library. I wanted to create a STL map of posix time zones. For this purpose, I wrote a mini code generator: ---------------------------------------------------- tz_database tz_db; tz_db.load_from_file("src/date_time_zonespec.csv"); vector<string> names = tz_db.region_list(); for (vector<string>::iterator it = names.begin(); it != names.end(); ++it) cout << " timeZones.insert(pair<string, time_zone_ptr>(\"" << *it << "\", " << "time_zone_ptr(new posix_time_zone(\"" << tz_db.time_zone_from_region(*it)->to_posix_string() << "\"))));" << endl; ---------------------------------------------------- (Sorry for the bad formatting) This created lines like the following: ---------------------------------------------------- timeZones.insert(pair<string, time_zone_ptr>("America/New_York", time_zone_ptr(new posix_time_zone("EST-05EDT+01,M3.2.0/02:00,M11.1.0/02:00")))); [...] timeZones.insert(pair<string, time_zone_ptr>("Pacific/Kiritimati", time_zone_ptr(new posix_time_zone("LINT+14")))); ---------------------------------------------------- The latter (and three others) throws an instance of boost::local_time::bad_offset. Thus, I have posix four time zones from the date_time_zone_spec.csv which can be written to a posix string, but the resulting string cannot be used to create a new posix time zone. Its certainly not critical for me. I currently have no need to use Pacific time zones, but it looks like an error anyway. Regards, Roland