--- BasiliskII/src/Unix/timer_unix.cpp	1999/10/14 16:05:18	1.2
+++ BasiliskII/src/Unix/timer_unix.cpp	2000/02/21 20:04:18	1.6
@@ -50,15 +50,16 @@ void Microseconds(uint32 &hi, uint32 &lo
  *  Return local date/time in Mac format (seconds since 1.1.1904)
  */
 
-const uint32 TIME_OFFSET = 0x7c25b080;	// Offset Mac->Unix time in seconds
-
 uint32 TimerDateTime(void)
 {
-	time_t uct_now = time(NULL);
-	long tz = timezone;
-	time_t local_now = uct_now - tz;
-	if (daylight)
-		local_now += 3600;
+	time_t utc_now = time(NULL);
+#if defined(__linux__) || defined(__SVR4)
+	time_t local_now = utc_now - timezone;
+#elif defined(__FreeBSD__) || defined(__NetBSD__)
+	time_t local_now = utc_now + localtime(&utc_now)->tm_gmtoff;
+#else
+	time_t local_now = utc_now;
+#endif
 	return (uint32)local_now + TIME_OFFSET;
 }