Fix conversion to Julian Day Number

Author: marco6

src/vfs.c

@@ -10,6 +10,7 @@
 #include <unistd.h>
 
 #include <sqlite3.h>
+#include <cmath>
 
 #include "../include/dqlite.h"
 
@@ -2001,7 +2002,7 @@ static int vfsCurrentTime(sqlite3_vfs *vfs, double *piNow)
 	sqlite3_int64 iNow;
 	int rc = vfsCurrentTimeInt64(vfs, &iNow);
 	if (rc == SQLITE_OK) {
-		*piNow = (double)iNow;
+		*piNow = ((double)iNow) / 86400000.0;
 	}
 	return rc;
 }