diff --git a/org_rw/org_rw.py b/org_rw/org_rw.py
index d0a7d80..a4a98b7 100644
--- a/org_rw/org_rw.py
+++ b/org_rw/org_rw.py
@@ -271,10 +271,6 @@ class Headline:
 
         return "".join(contents).rstrip()
 
-    @property
-    def id(self):
-        return self.get_property("ID")
-
     @property
     def clock(self):
         times = []
@@ -587,11 +583,13 @@ class TimeRange:
 
     @property
     def start(self) -> datetime:
-        return self.start_time.time.to_datetime()
+        st = self.start_time
+        return datetime(st.year, st.month, st.day, st.hour or 0, st.minute or 0)
 
     @property
     def end(self) -> datetime:
-        return self.end_time.time.to_datetime()
+        et = self.end_time
+        return datetime(et.year, et.month, et.day, et.hour or 0, et.minute or 0)
 
 
 def parse_time(value: str) -> Union[None, TimeRange, OrgTime]:
@@ -622,13 +620,6 @@ class OrgTime:
         self.time = ts
         self.end_time = end_time
 
-    @property
-    def duration(self):
-        if self.end_time is None:
-            return timedelta()  # No duration
-        else:
-            return self.end_time.to_datetime() - self.time.to_datetime()
-
     def to_raw(self):
         return timestamp_to_string(self.time, self.end_time)