+;;; DECODE-UNIVERSAL-TIME shouldn't fail when the time is outside UNIX
+;;; 32-bit time_t and a timezone wasn't passed
+(decode-universal-time 0 nil)
+
+;;; ENCODE-UNIVERSAL-TIME should be able to encode the universal time
+;;; 0 when passed a representation in a timezone where the
+;;; representation of 0 as a decoded time is in 1899.
+(encode-universal-time 0 0 23 31 12 1899 1)
+