passing Julia datetime and string arrays from C to Julia

I plan to use Julia as one of the languages that manipulates array of data that come from C/C++ programs. So I need to embed Julia. That works alright. However I need to pass array of basic types from C to Julia that includes integers, numbers, strings, datetime. There are quite good example for passing numeric arrays, and I am happy with them, but I need some advice in how to pass date time ARRAY variables (date, daytime, datetime), and strings. Ideally would be a zero copy mechanism, of course, yet I am eager to learn about any other solution.