diff --git a/src/cli.py b/src/cli.py
index ce1a268..a443478 100644
--- a/src/cli.py
+++ b/src/cli.py
@@ -26,7 +26,7 @@ def start(name, workspace) -> None:
 
     click.echo("Successfully started!")
     click.echo(
-        f"DESC: {response.description}\tID: {response.id}\tSTART TIME: {datetime.strftime(response.start, '%d/%m/%Y, %H:%M:%S')}"
+        f"DESC: {response.description}\tID: {response.id}\tTIME: {datetime.strftime(response.start, '%Y-%m-%d %H:%M:%S')} - In process"
     )
 
 
@@ -42,7 +42,7 @@ def stop(workspace, id) -> None:
 
     click.echo("Successfully stopped!")
     click.echo(
-        f"DESC: {response.description}\tID: {response.id}\tSTART TIME: {datetime.strftime(response.start, '%d/%m/%Y, %H:%M:%S')}\tEND TIME: {response.end}"
+        f"DESC: {response.description}\tID: {response.id}\tTIME: {datetime.strftime(response.start, '%Y-%m-%d %H:%M:%S')} - {response.end}"
     )
 
 
diff --git a/src/lib_types.py b/src/lib_types.py
index d47f364..7764e93 100644
--- a/src/lib_types.py
+++ b/src/lib_types.py
@@ -22,8 +22,12 @@ class TimeEntry:
     task_id: str | None = None
     type_: TimeEntryType | None = None
 
-    def _transform_datetime_to_str(self, datetime_obj: datetime) -> str:
-        return datetime_obj.astimezone(UTC).strftime("%Y-%m-%dT%H:%M:%SZ")
+    def _transform_datetime_to_str(self, datetime_obj: datetime | None) -> str | None:
+        return (
+            None
+            if not datetime_obj
+            else datetime_obj.astimezone(UTC).strftime("%Y-%m-%dT%H:%M:%SZ")
+        )
 
     def to_json(self) -> dict:
         return {