diff --git a/supabase/migrations/20260722000000_add_timezone_to_scheduled_actions.sql b/supabase/migrations/20260722000000_add_timezone_to_scheduled_actions.sql
new file mode 100644
index 0000000..62326a9
--- /dev/null
+++ b/supabase/migrations/20260722000000_add_timezone_to_scheduled_actions.sql
@@ -0,0 +1,10 @@
+-- Add timezone column to scheduled_actions
+-- Purpose: schedule weekly-report sends at 9am LOCAL time instead of 9am UTC
+-- (currently the middle of the night in the US). See chat#1881 item 3c.
+
+-- Change: add optional IANA timezone column with default NULL (NULL = UTC).
+ALTER TABLE public.scheduled_actions
+ADD COLUMN IF NOT EXISTS timezone text DEFAULT NULL;
+
+COMMENT ON COLUMN public.scheduled_actions.timezone IS
+'IANA timezone id (e.g. America/New_York) the schedule is interpreted in. NULL = UTC.';