diff --git a/_pkgdown.yml b/_pkgdown.yml
index fffb892..4045b33 100644
--- a/_pkgdown.yml
+++ b/_pkgdown.yml
@@ -136,6 +136,7 @@ reference:
   - '`dtt_decade`'
   - '`dtt_diff`'
   - '`dtt_excel_to_date`'
+  - '`dtt_excel_to_date_time`'
   - '`dtt_season`'
   - '`dtt_study_year`'
   - '`dtt_wday`'