error: ‘time’ cannot be used as a function

I am trying to write a small function that will eventually store the current date and time in a text file. I am in Linux using g++ and keep getting a strange error.

Function(so far):

#include <ctime>
#include <time.h>
    void write_updateTime(double time){
        char buffer[80]={};
        time_t rawt;
        string local;
        struct tm * timeinfo;
        time(&rawt);
        timeinfo = localtime(&rawt);

        sprintf(buffer, "%s", asctime(timeinfo));
    }

Error:

ApplicationModule.cpp:79:12: error: ‘time’ cannot be used as a function time(&rawt);

I have searched all over, and all the examples I have found use the time function this way. I have as well as

Any thoughts?