diff --git a/src/compare/diff.rs b/src/compare/diff.rs
index 98a7bdcd..79288b76 100644
--- a/src/compare/diff.rs
+++ b/src/compare/diff.rs
@@ -43,6 +43,7 @@ use crate::types::GetStandardProperties;
 use crate::types::GreaterBlock;
 use crate::types::Heading;
 use crate::types::HorizontalRule;
+use crate::types::HourInner;
 use crate::types::InlineBabelCall;
 use crate::types::InlineSourceBlock;
 use crate::types::Italic;
@@ -50,6 +51,7 @@ use crate::types::Keyword;
 use crate::types::LatexEnvironment;
 use crate::types::LatexFragment;
 use crate::types::LineBreak;
+use crate::types::MinuteInner;
 use crate::types::Month;
 use crate::types::MonthInner;
 use crate::types::NodeProperty;
@@ -2163,11 +2165,12 @@ fn compare_timestamp<'b, 's>(
     // Compare raw-value
     let raw_value = get_property_quoted_string(emacs, ":raw-value")?
         .ok_or("Timestamps should have a :raw-value.")?;
-    if raw_value != rust.source {
+    if raw_value != rust.get_raw_value() {
         this_status = DiffStatus::Bad;
         message = Some(format!(
             "Raw value mismatch (emacs != rust) {:?} != {:?}",
-            raw_value, rust.source
+            raw_value,
+            rust.get_raw_value()
         ));
     }
 
@@ -2241,6 +2244,10 @@ fn compare_timestamp<'b, 's>(
         ));
     }
 
+    // Compare time start
+    let hour_start: Option<HourInner> = get_property_numeric(emacs, ":hour-start")?;
+    let minute_start: Option<MinuteInner> = get_property_numeric(emacs, ":minute-start")?;
+
     // TODO: Compare :hour-start :minute-start :hour-end :minute-end :repeater-type :repeater-value :repeater-unit :warning-type :warning-value :warning-unit
     //
     // :type unquoted atom either diary, active, inactive, active-range, or inactive-range.
diff --git a/src/types/object.rs b/src/types/object.rs
index 885745a7..229e2a91 100644
--- a/src/types/object.rs
+++ b/src/types/object.rs
@@ -586,3 +586,9 @@ impl<'s> StandardProperties<'s> for PlainText<'s> {
         self.source
     }
 }
+
+impl<'s> Timestamp<'s> {
+    pub fn get_raw_value(&self) -> &'s str {
+        self.source.trim_end()
+    }
+}