diff --git a/internal/date.go b/internal/date.go
index c3a67b9..cc81a1c 100644
--- a/internal/date.go
+++ b/internal/date.go
@@ -2,7 +2,7 @@ package internal
 
 import "time"
 
-const iOS13DetriFormat = `Y2006 M01 2 Mon`
+const iOS13DetriFormat = `2006 M01 2`
 
 // IOS13Detri formats a datestamp like iOS 13 does with the Lojban locale.
 func IOS13Detri(t time.Time) string {