diff -Naur libnova-0.15.0.orig/src/julian_day.c libnova-0.15.0/src/julian_day.c
--- libnova-0.15.0.orig/src/julian_day.c	2018-05-17 15:44:24.543368100 -0400
+++ libnova-0.15.0/src/julian_day.c	2018-05-17 15:57:24.240688000 -0400
@@ -189,17 +189,30 @@
 void ln_get_date_from_sys (struct ln_date * date)
 {
 	struct tm * gmt;
+    #ifdef __WIN32__
+    struct posix_timeval tv;
+	struct posix_timezone tz;
+    #else
 	struct timeval tv;
 	struct timezone tz;
+    #endif
 
 	/* get current time with microseconds precission*/
 	gettimeofday (&tv, &tz);
 
 	/* convert to UTC time representation */
+    #ifdef __WIN32__
+    gmt = gmtime(&tv.posix_tv_sec);
+    #else
 	gmt = gmtime(&tv.tv_sec);
+    #endif
     	
 	/* fill in date struct */
+    #ifdef __WIN32__
+    date->seconds = gmt->tm_sec + ((double)tv.posix_tv_usec / 1000000);
+    #else
 	date->seconds = gmt->tm_sec + ((double)tv.tv_usec / 1000000);
+    #endif
 	date->minutes = gmt->tm_min;
 	date->hours = gmt->tm_hour;
 	date->days = gmt->tm_mday;
diff -Naur libnova-0.15.0.orig/src/libnova/ln_types.h libnova-0.15.0/src/libnova/ln_types.h
--- libnova-0.15.0.orig/src/libnova/ln_types.h	2018-05-17 15:44:24.433994300 -0400
+++ libnova-0.15.0/src/libnova/ln_types.h	2018-05-17 15:54:18.810928500 -0400
@@ -341,16 +341,16 @@
 
 #include <time.h>
 
-struct timeval
+struct posix_timeval
 {
-	time_t  tv_sec;         /* count of seconds since Jan. 1, 1970 */
-	long    tv_usec;        /* and microseconds */
+	time_t  posix_tv_sec;         /* count of seconds since Jan. 1, 1970 */
+	long    posix_tv_usec;        /* and microseconds */
 };
 
-struct timezone
+struct posix_timezone
 {
-	int     tz_minuteswest; /* Minutes west of GMT */
-	int     tz_dsttime;     /* DST correction offset */
+	int     posix_tz_minuteswest; /* Minutes west of GMT */
+	int     posix_tz_dsttime;     /* DST correction offset */
 };
 
 #endif /* __WIN32__ */
diff -Naur libnova-0.15.0.orig/src/libnova/utility.h libnova-0.15.0/src/libnova/utility.h
--- libnova-0.15.0.orig/src/libnova/utility.h	2018-05-17 15:44:24.465242600 -0400
+++ libnova-0.15.0/src/libnova/utility.h	2018-05-17 16:21:34.418019200 -0400
@@ -21,12 +21,6 @@
 
 #include <libnova/ln_types.h>
 
-#ifdef __WIN32__
-#include <time.h>
-// cbrt replacement
-#define cbrt(x)   pow (x,1.0/3.0)
-#endif
-
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -222,7 +216,7 @@
 struct tm *gmtime_r (time_t *t, struct tm *gmt);
 
 /* Catches calls to the POSIX gettimeofday and converts them to a related WIN32 version. */
-int gettimeofday(struct timeval *tp, struct timezone *tzp);
+int gettimeofday(struct posix_timeval *tp, struct posix_timezone *tzp);
 
 /* Catches calls to the POSIX strtok_r and converts them to a related WIN32 version. */
 char *strtok_r(char *str, const char *sep, char **last);
diff -Naur libnova-0.15.0.orig/src/utility.c libnova-0.15.0/src/utility.c
--- libnova-0.15.0.orig/src/utility.c	2018-05-17 15:44:24.355870400 -0400
+++ libnova-0.15.0/src/utility.c	2018-05-17 16:04:25.653565300 -0400
@@ -678,17 +678,17 @@
 #ifdef __WIN32__
 
 /* Catches calls to the POSIX gettimeofday and converts them to a related WIN32 version. */
-int gettimeofday(struct timeval *tv, struct timezone *tz)
+int gettimeofday(struct posix_timeval *tv, struct posix_timezone *tz)
 {
 	struct _timeb timeptr;
 
 	_ftime_s (&timeptr);
 
-	tv->tv_sec = timeptr.time;
-	tv->tv_usec = timeptr.millitm * 1000;
+	tv->posix_tv_sec = timeptr.time;
+	tv->posix_tv_usec = timeptr.millitm * 1000;
 
-	tz->tz_dsttime = timeptr.dstflag;
-	tz->tz_dsttime = timeptr.timezone;
+	tz->posix_tz_dsttime = timeptr.dstflag;
+	tz->posix_tz_dsttime = timeptr.timezone;
 
 	return 0;
 }