+ -- RFC733
+ , property ( RFC733.fromAscii "Sunday, 06-Nov-94 08:49:37 GMT"
+ ≡ Right referenceZonedTime )
+
+ , property ( "Sunday, 06-Nov-1994 08:49:37 GMT"
+ ≡ RFC733.toAscii referenceZonedTime )
+
+ , property $ \zt → Right zt ≡ RFC733.fromAscii (RFC733.toAscii zt)
+