Improve duration handling for sessions and games

games/views/session.py

@@ -20,9 +20,6 @@ from common.components import (
 )
 from common.time import (
     dateformat,
-    durationformat,
-    durationformat_manual,
-    format_duration,
     local_strftime,
     timeformat,
 )
@@ -130,11 +127,7 @@ def list_sessions(request: HttpRequest, search_string: str = "") -> HttpResponse
                 [
                     NameWithIcon(session_id=session.pk),
                     f"{local_strftime(session.timestamp_start)}{f' — {local_strftime(session.timestamp_end, timeformat)}' if session.timestamp_end else ''}",
-                    (
-                        format_duration(session.duration_calculated, durationformat)
-                        if session.duration_calculated
-                        else f"{format_duration(session.duration_manual, durationformat_manual)}*"
-                    ),
+                    session.duration_formatted_with_mark,
                     session.device,
                     session.created_at.strftime(dateformat),
                     render_to_string(