Is there any way to get 64-bit time_t in 32-bit programs in Linux?

On Windows I can call:

_time32(__time32_t); // to get 32-bit time_t
_time64(__time64_t); // to get 64-bit time_t

(both in 32 and 64-bit programs)

Is there any way do this in Linux (compiling with GCC)?