diff --git a/src/ntfs/read.rs b/src/ntfs/read.rs
index fdfb2d34d..00e6f7a53 100644
--- a/src/ntfs/read.rs
+++ b/src/ntfs/read.rs
@@ -321,8 +321,8 @@ where
                 sequence: stop_time.stop_sequence,
                 arrival_time: stop_time.arrival_time,
                 departure_time: stop_time.departure_time,
-                start_pickup_drop_off_window: None,
-                end_pickup_drop_off_window: None,
+                start_pickup_drop_off_window: stop_time.start_pickup_drop_off_window,
+                end_pickup_drop_off_window: stop_time.end_pickup_drop_off_window,
                 boarding_duration: stop_time.boarding_duration,
                 alighting_duration: stop_time.alighting_duration,
                 pickup_type: stop_time.pickup_type,
diff --git a/src/objects.rs b/src/objects.rs
index 0c34a5d44..4fbcaf5da 100644
--- a/src/objects.rs
+++ b/src/objects.rs
@@ -687,10 +687,14 @@ impl GetObjectType for VehicleJourney {
 
 impl VehicleJourney {
     pub fn first_departure_time(&self) -> Option<Time> {
-        self.stop_times.first().and_then(|st| st.departure_time)
+        self.stop_times
+            .first()
+            .and_then(|st| st.departure_time.or(st.start_pickup_drop_off_window))
     }
     pub fn last_arrival_time(&self) -> Option<Time> {
-        self.stop_times.last().and_then(|st| st.arrival_time)
+        self.stop_times
+            .last()
+            .and_then(|st| st.arrival_time.or(st.end_pickup_drop_off_window))
     }
 }
 
@@ -715,23 +719,50 @@ impl VehicleJourney {
         for window in self.stop_times.windows(2) {
             let curr_st = &window[0];
             let next_st = &window[1];
+
             if curr_st.sequence == next_st.sequence {
                 return Err(StopTimeError::DuplicateStopSequence {
                     duplicated_sequence: curr_st.sequence,
                     vj_id: self.id.clone(),
                 });
             }
-            #[allow(clippy::suspicious_operation_groupings)]
-            if let Some(dt) = curr_st.departure_time {
-                if (curr_st.arrival_time > curr_st.departure_time)
-                    || (curr_st.departure_time > next_st.arrival_time)
-                {
+
+            let dt = curr_st
+                .departure_time
+                .or(curr_st.start_pickup_drop_off_window)
+                .unwrap_or_default();
+
+            // Only 2 valid possibilities:
+            // - arrival_time and departure_time are filled, but not start_pickup_drop_off_window and end_pickup_drop_off_window
+            // - start_pickup_drop_off_window and end_pickup_drop_off_window are filled, but not arrival_time and departure_time
+            match (
+                curr_st.arrival_time,
+                curr_st.departure_time,
+                curr_st.start_pickup_drop_off_window,
+                curr_st.end_pickup_drop_off_window,
+            ) {
+                (Some(_), Some(_), None, None) => (),
+                (None, None, Some(_), Some(_)) => (),
+                _ => {
                     return Err(StopTimeError::IncoherentStopTimes {
                         first_incorrect_sequence: curr_st.sequence,
                         first_incorrect_time: dt,
                         vj_id: self.id.clone(),
-                    });
+                    })
                 }
+            };
+
+            if (curr_st.arrival_time > curr_st.departure_time)
+                || (curr_st.start_pickup_drop_off_window > curr_st.end_pickup_drop_off_window)
+                || (curr_st.departure_time.is_some()
+                    && next_st.arrival_time.is_some()
+                    && curr_st.departure_time > next_st.arrival_time)
+            {
+                return Err(StopTimeError::IncoherentStopTimes {
+                    first_incorrect_sequence: curr_st.sequence,
+                    first_incorrect_time: dt,
+                    vj_id: self.id.clone(),
+                });
             }
         }
         Ok(())
diff --git a/tests/fixtures/ntfs_with_windows/input/lines.txt b/tests/fixtures/ntfs_with_windows/input/lines.txt
index 726bc2261..042d22f22 100644
--- a/tests/fixtures/ntfs_with_windows/input/lines.txt
+++ b/tests/fixtures/ntfs_with_windows/input/lines.txt
@@ -1,5 +1,5 @@
 line_id,line_code,line_name,forward_line_name,backward_line_name,line_color,line_text_color,line_sort_order,network_id,commercial_mode_id,geometry_id,line_opening_time,line_closing_time
-MFDI:C01376,6,6,,,6ECA97,0,,MFDI:Operator_100,Metro,,,
+MFDI:C01376,6,6,,,6ECA97,000000,,MFDI:Operator_100,Metro,,,
 MFDI:C02060,Filéo RS,Filéo Roissy Sud - Villeparisis et Mitry (sur réservation),,,4890CD,FFFFFF,,MFDI:1071,Bus,,,
 MFDI:C02491,Soir,Soir Saint-Germain-en-Laye,,,652C8F,FFFFFF,,MFDI:1062,Bus,,,
 MFDI:C02513,Soir,Soir Versailles-Chantiers,,,640082,FFFFFF,,MFDI:1061,Bus,,,
diff --git a/tests/fixtures/ntfs_with_windows/output/lines.txt b/tests/fixtures/ntfs_with_windows/output/lines.txt
new file mode 100644
index 000000000..fa8da0fd8
--- /dev/null
+++ b/tests/fixtures/ntfs_with_windows/output/lines.txt
@@ -0,0 +1,5 @@
+line_id,line_code,line_name,forward_line_name,backward_line_name,line_color,line_text_color,line_sort_order,network_id,commercial_mode_id,geometry_id,line_opening_time,line_closing_time
+MFDI:C01376,6,6,,,6ECA97,000000,,MFDI:Operator_100,Metro,,10:30:00,11:03:00
+MFDI:C02060,Filéo RS,Filéo Roissy Sud - Villeparisis et Mitry (sur réservation),,,4890CD,FFFFFF,,MFDI:1071,Bus,,02:39:00,03:15:00
+MFDI:C02491,Soir,Soir Saint-Germain-en-Laye,,,652C8F,FFFFFF,,MFDI:1062,Bus,,23:15:00,23:48:00
+MFDI:C02513,Soir,Soir Versailles-Chantiers,,,640082,FFFFFF,,MFDI:1061,Bus,,22:30:00,22:55:00
diff --git a/tests/read_ntfs.rs b/tests/read_ntfs.rs
index d76db1548..7349458bb 100644
--- a/tests/read_ntfs.rs
+++ b/tests/read_ntfs.rs
@@ -558,13 +558,13 @@ fn ntfs_with_duplicated_objects_without_id() {
 }
 
 #[test]
-fn preserve_stoptimes_windows() {
+fn preserve_stoptimes_windows_and_enhance_line_opening_time() {
     let ntm = transit_model::ntfs::read("tests/fixtures/ntfs_with_windows/input/").unwrap();
     test_in_tmp_dir(|output_dir| {
         transit_model::ntfs::write(&ntm, output_dir, get_test_datetime()).unwrap();
         compare_output_dir_with_expected(
             output_dir,
-            Some(vec!["stop_times.txt"]),
+            Some(vec!["lines.txt", "stop_times.txt"]),
             "tests/fixtures/ntfs_with_windows/output",
         );
     });