--- at-3.1.10/at.c.daylight	2007-03-31 00:03:47.000000000 +0200
+++ at-3.1.10/at.c	2007-03-31 00:06:23.000000000 +0200
@@ -840,8 +840,9 @@
 	    
 	        if( tm.tm_mday )
 	        {
-		       tm.tm_isdst = tm_now.tm_isdst;
-		       return mktime(&tm);
+		       tm.tm_isdst = -1;
+		       t = mktime(&tm);
+		       return t;
 		} else
 		       return 0L;
 }