Working with date and time, time spans, time zones as well ... - Poco

DateTimeParser Functions
> void parse(const std::string fmt, const std::string& str,
DateTime& dateTime, int& tzd)
parses a date and time in the format given in fmt from the string
str. Stores the date and the time in dateTime and the time zone
differential in tzd. Throws a Poco::SyntaxException if the string
cannot be parsed.
> DateTime parse(const std::string& fmt,
const std::string& str, int& tzd)
similar to the above, but returns the DateTime