diff --git a/source/widgets/weekview/logic.ts b/source/widgets/weekview/logic.ts
index 376efa0..0eb86ff 100644
--- a/source/widgets/weekview/logic.ts
+++ b/source/widgets/weekview/logic.ts
@@ -168,17 +168,25 @@ namespace _dali.widgets
 			this.show_begin_time = show_begin_time;
 			
 			// state
-			const ywd_now : lib_plankton.pit.type_ywd = lib_plankton.pit.to_ywd(lib_plankton.pit.now());
+			// const ywd_now : lib_plankton.pit.type_ywd = lib_plankton.pit.to_ywd(lib_plankton.pit.now());
+			const ywd_begin : lib_plankton.pit.type_ywd = lib_plankton.call.convey(
+				lib_plankton.pit.now(),
+				[
+					x => lib_plankton.pit.shift_week(x, -1),
+					lib_plankton.pit.to_ywd,
+				]
+			);
+			
 			this.vertical = vertical;
 			this.year = (
 				initial_year
 				??
-				ywd_now.year
+				ywd_begin.year
 			);
 			this.week = (
 				initial_week
 				??
-				Math.max(0, (ywd_now.week - 1))
+				ywd_begin.week
 			);
 			this.count = initial_count;
 			this.event_map = lib_plankton.map.hashmap.implementation_map(