Add no_time.

src/serde/de.rs

@@ -157,6 +157,7 @@ impl<'de> Deserializer<'de> for DynamicDeserializer<'de> {
             Union::Map(..) => self.deserialize_map(visitor),
             Union::FnPtr(..) => self.type_error(),
             #[cfg(not(feature = "no_std"))]
+            #[cfg(not(feature = "no_time"))]
             Union::TimeStamp(..) => self.type_error(),
 
             Union::Variant(ref value, ..) if value.is::<i8>() => self.deserialize_i8(visitor),

src/serde/serialize.rs

@@ -10,6 +10,7 @@ use std::prelude::v1::*;
 use serde::ser::SerializeMap;
 
 #[cfg(not(feature = "no_std"))]
+#[cfg(not(feature = "no_time"))]
 use crate::types::dynamic::Variant;
 
 impl Serialize for Dynamic {
@@ -66,6 +67,7 @@ impl Serialize for Dynamic {
             }
             Union::FnPtr(ref f, ..) => ser.serialize_str(f.fn_name()),
             #[cfg(not(feature = "no_std"))]
+            #[cfg(not(feature = "no_time"))]
             Union::TimeStamp(ref x, ..) => ser.serialize_str(x.as_ref().type_name()),
 
             Union::Variant(ref v, ..) => ser.serialize_str((***v).type_name()),