diff --git a/htdocs/core/db/DoliDB.class.php b/htdocs/core/db/DoliDB.class.php
index 6f5a75b35ab..7d6afd22457 100644
--- a/htdocs/core/db/DoliDB.class.php
+++ b/htdocs/core/db/DoliDB.class.php
@@ -64,8 +64,6 @@ abstract class DoliDB implements Database
     public $ok;
     public $error;
 
-
-
 	/**
 	 * Define sort criteria of request
 	 *
@@ -94,5 +92,22 @@ abstract class DoliDB implements Database
 			return '';
 		}
 	}
+
+	/**
+	 *	Convert (by PHP) a PHP server TZ string date into a Timestamps date (GMT if gm=true)
+	 * 	19700101020000 -> 3600 with TZ+1 and gmt=0
+	 * 	19700101020000 -> 7200 whaterver is TZ if gmt=1
+	 *
+	 * 	@param	string	$string		Date in a string (YYYYMMDDHHMMSS, YYYYMMDD, YYYY-MM-DD HH:MM:SS)
+	 *	@param	int		$gm			1=Input informations are GMT values, otherwise local to server TZ
+	 *	@return	date				Date TMS
+	 */
+	function jdate($string, $gm=false)
+	{
+		$string=preg_replace('/([^0-9])/i','',$string);
+		$tmp=$string.'000000';
+		$date=dol_mktime(substr($tmp,8,2),substr($tmp,10,2),substr($tmp,12,2),substr($tmp,4,2),substr($tmp,6,2),substr($tmp,0,4),$gm);
+		return $date;
+	}
 }
 
diff --git a/htdocs/core/db/mssql.class.php b/htdocs/core/db/mssql.class.php
index 0e1b1a2ca0c..ae8e6ea5ce6 100644
--- a/htdocs/core/db/mssql.class.php
+++ b/htdocs/core/db/mssql.class.php
@@ -553,23 +553,6 @@ class DoliDBMssql extends DoliDB
 		return dol_print_date($param,"%Y-%m-%d %H:%M:%S");
 	}
 
-    /**
-     *	Convert (by PHP) a PHP server TZ string date into a Timestamps date (GMT if gm=true)
-     * 	19700101020000 -> 3600 with TZ+1 and gmt=0
-     * 	19700101020000 -> 7200 whaterver is TZ if gmt=1
-     *
-     * 	@param	string	$string		Date in a string (YYYYMMDDHHMMSS, YYYYMMDD, YYYY-MM-DD HH:MM:SS)
-	 *	@param	int		$gm			1=Input informations are GMT values, otherwise local to server TZ
-     *	@return	date				Date TMS
-     */
-    function jdate($string, $gm=false)
-    {
-        $string=preg_replace('/([^0-9])/i','',$string);
-        $tmp=$string.'000000';
-        $date=dol_mktime(substr($tmp,8,2),substr($tmp,10,2),substr($tmp,12,2),substr($tmp,4,2),substr($tmp,6,2),substr($tmp,0,4),$gm);
-        return $date;
-    }
-
 	/**
 	 *	Format a SQL IF
 	 *
diff --git a/htdocs/core/db/mysql.class.php b/htdocs/core/db/mysql.class.php
index 46b16113a26..bd6c2794b17 100644
--- a/htdocs/core/db/mysql.class.php
+++ b/htdocs/core/db/mysql.class.php
@@ -531,23 +531,6 @@ class DoliDBMysql extends DoliDB
 		return dol_print_date($param,"%Y%m%d%H%M%S");
 	}
 
-    /**
-     *	Convert (by PHP) a PHP server TZ string date into a Timestamps date (GMT if gm=true)
-     * 	19700101020000 -> 3600 with TZ+1 and gmt=0
-     * 	19700101020000 -> 7200 whaterver is TZ if gmt=1
-     *
-     * 	@param	string	$string		Date in a string (YYYYMMDDHHMMSS, YYYYMMDD, YYYY-MM-DD HH:MM:SS)
-	 *	@param	int		$gm			1=Input informations are GMT values, otherwise local to server TZ
-     *	@return	date				Date TMS
-     */
-    function jdate($string, $gm=false)
-    {
-        $string=preg_replace('/([^0-9])/i','',$string);
-        $tmp=$string.'000000';
-        $date=dol_mktime(substr($tmp,8,2),substr($tmp,10,2),substr($tmp,12,2),substr($tmp,4,2),substr($tmp,6,2),substr($tmp,0,4),$gm);
-        return $date;
-    }
-
 	/**
 	 *	Format a SQL IF
 	 *
diff --git a/htdocs/core/db/mysqli.class.php b/htdocs/core/db/mysqli.class.php
index ece1ff86532..f530656cc7f 100644
--- a/htdocs/core/db/mysqli.class.php
+++ b/htdocs/core/db/mysqli.class.php
@@ -541,23 +541,6 @@ class DoliDBMysqli extends DoliDB
         return dol_print_date($param,"%Y%m%d%H%M%S");
     }
 
-    /**
-     *	Convert (by PHP) a PHP server TZ string date into a Timestamps date (GMT if gm=true)
-     * 	19700101020000 -> 3600 with TZ+1 and gmt=0
-     * 	19700101020000 -> 7200 whaterver is TZ if gmt=1
-     *
-     * 	@param	string	$string		Date in a string (YYYYMMDDHHMMSS, YYYYMMDD, YYYY-MM-DD HH:MM:SS)
-	 *	@param	int		$gm			1=Input informations are GMT values, otherwise local to server TZ
-     *	@return	date				Date TMS
-     */
-    function jdate($string, $gm=false)
-    {
-        $string=preg_replace('/([^0-9])/i','',$string);
-        $tmp=$string.'000000';
-        $date=dol_mktime(substr($tmp,8,2),substr($tmp,10,2),substr($tmp,12,2),substr($tmp,4,2),substr($tmp,6,2),substr($tmp,0,4),$gm);
-        return $date;
-    }
-
     /**
      *  Format a SQL IF
      *
diff --git a/htdocs/core/db/pgsql.class.php b/htdocs/core/db/pgsql.class.php
index aa31f5616c8..7b2961e623c 100644
--- a/htdocs/core/db/pgsql.class.php
+++ b/htdocs/core/db/pgsql.class.php
@@ -752,23 +752,6 @@ class DoliDBPgsql extends DoliDB
 		return dol_print_date($param,"%Y-%m-%d %H:%M:%S");
 	}
 
-    /**
-     *	Convert (by PHP) a PHP server TZ string date into a Timestamps date (GMT if gm=true)
-     * 	19700101020000 -> 3600 with TZ+1 and gmt=0
-     * 	19700101020000 -> 7200 whaterver is TZ if gmt=1
-     *
-     * 	@param	string	$string		Date in a string (YYYYMMDDHHMMSS, YYYYMMDD, YYYY-MM-DD HH:MM:SS)
-	 *	@param	int		$gm			1=Input informations are GMT values, otherwise local to server TZ
-     *	@return	date				Date TMS
-     */
-    function jdate($string, $gm=false)
-    {
-        $string=preg_replace('/([^0-9])/i','',$string);
-        $tmp=$string.'000000';
-        $date=dol_mktime(substr($tmp,8,2),substr($tmp,10,2),substr($tmp,12,2),substr($tmp,4,2),substr($tmp,6,2),substr($tmp,0,4),$gm);
-        return $date;
-    }
-
 	/**
      *  Format a SQL IF
      *
diff --git a/htdocs/core/db/sqlite.class.php b/htdocs/core/db/sqlite.class.php
index 36f583011e4..67dc9593042 100644
--- a/htdocs/core/db/sqlite.class.php
+++ b/htdocs/core/db/sqlite.class.php
@@ -674,24 +674,6 @@ class DoliDBSqlite extends DoliDB
         return dol_print_date($param,"%Y%m%d%H%M%S");
     }
 
-    /**
-     *	Convert (by PHP) a PHP server TZ string date into a Timestamps date (GMT if gm=true)
-     * 	19700101020000 -> 3600 with TZ+1 and gmt=0
-     * 	19700101020000 -> 7200 whaterver is TZ if gmt=1
-     *
-     * 	@param	string	$string		Date in a string (YYYYMMDDHHMMSS, YYYYMMDD, YYYY-MM-DD HH:MM:SS)
-	 *	@param	int		$gm			1=Input informations are GMT values, otherwise local to server TZ
-     *	@return	date				Date TMS
-     */
-    function jdate($string, $gm=false)
-    {
-        $string=preg_replace('/([^0-9])/i','',$string);
-        $tmp=$string.'000000';
-        $date=dol_mktime(substr($tmp,8,2),substr($tmp,10,2),substr($tmp,12,2),substr($tmp,4,2),substr($tmp,6,2),substr($tmp,0,4),$gm);
-        return $date;
-    }
-
-
 	/**
 	 *	Format a SQL IF
 	 *