diff --git a/Dates/jours_ouvres.ps1 b/Dates/jours_ouvres.ps1
new file mode 100644
index 0000000..b4582c8
--- /dev/null
+++ b/Dates/jours_ouvres.ps1
@@ -0,0 +1,19 @@
+#Script créé par Nicolas Lang - Sous licence CC-BY-SA
+#https://nicolaslang.fr
+
+$today = Get-Date
+$cible = [datetime]"12/16/2016"
+
+$feries = @([datetime]"01/01",[datetime]"05/01",[datetime]"05/08",[datetime]"07/14",[datetime]"08/15",[datetime]"11/1",[datetime]"11/11",[datetime]"12/25")
+$feries += @([datetime]"04/21/2014",[datetime]"05/29/2014",[datetime]"06/09/2014",[datetime]"04/06/2015",[datetime]"05/14/2015",[datetime]"05/25/2015")
+#ajoutez les jours qui sont fériés en conservant cette syntaxe
+$joursouvres = 1
+ while ($today.ToLongDateString() -ne $cible.ToLongDateString())
+ {
+ if (($today.DayOfWeek -ne "Sunday") -and ($today.DayOfWeek -ne "Saturday") -and ($feries.tolongdatestring() -notcontains $today.tolongdatestring()))
+  {
+  $joursouvres++
+  }#fin if
+  $today = $today.AddDays(1)
+ }#fin while
+ Write-Host $joursouvres "jour(s) ouvré(s), aujourd'hui inclus"
\ No newline at end of file