diff --git a/_calcul_dates.html b/_calcul_dates.html
index 00ca468..035e70e 100644
--- a/_calcul_dates.html
+++ b/_calcul_dates.html
@@ -11,10 +11,7 @@
 {{:assign ts_fin=$date_fin|strtotime}}
 
 {{if $ts_debut <= $ts_fin}}
-	{{:assign nbjours="(%d-%d)/(60*60*24)"|math:$ts_fin:$ts_debut}}
+	{{:assign nbjours="1+(%d-%d)/(60*60*24)"|math:$ts_fin:$ts_debut}}
 {{else}}
-	{{:assign nbjours="(%d-%d)/(60*60*24)"|math:$ts_debut:$ts_fin}}
+	{{:assign nbjours="1+(%d-%d)/(60*60*24)"|math:$ts_debut:$ts_fin}}
 {{/if}}
-
-{{* pour simplifier : 360 jours par an *}}
-{{:assign nbjours="round(%f/365*360)"|math:$nbjours}}