diff --git a/files/borgmatic.timer b/files/borgmatic.timer
index b4aace2..5ac805d 100644
--- a/files/borgmatic.timer
+++ b/files/borgmatic.timer
@@ -2,7 +2,7 @@
 Description=Daily backup with borgmatic
 
 [Timer]
-OnCalendar=daily
+OnCalendar=*-*-* 20:00:00 Asia/Tokyo
 RandomizedDelaySec=3600
 Persistent=true