diff --git a/htdocs/accountancy/bookkeeping/balance.php b/htdocs/accountancy/bookkeeping/balance.php
index cf2fea62567..3d8d469b63f 100644
--- a/htdocs/accountancy/bookkeeping/balance.php
+++ b/htdocs/accountancy/bookkeeping/balance.php
@@ -60,8 +60,8 @@ if ($type == 'sub') {
 $contextpage = GETPOST('contextpage', 'aZ') ? GETPOST('contextpage', 'aZ') : $context_default;
 $show_subgroup = GETPOST('show_subgroup', 'alpha');
 
-$search_date_start = GETPOSTDATE('date_start', 'getpost');
-$search_date_end = GETPOSTDATE('date_end', 'getpostend');
+$search_date_start = GETPOSTDATE('date_start', 'getpost', 'auto', 'search_date_start_accountancy');
+$search_date_end = GETPOSTDATE('date_end', 'getpostend', 'auto', 'search_date_end_accountancy');
 
 $search_ledger_code = GETPOST('search_ledger_code', 'array');
 $search_accountancy_code_start = GETPOST('search_accountancy_code_start', 'alpha');
diff --git a/htdocs/accountancy/bookkeeping/list.php b/htdocs/accountancy/bookkeeping/list.php
index 6045a4bcb32..7dff65c8697 100644
--- a/htdocs/accountancy/bookkeeping/list.php
+++ b/htdocs/accountancy/bookkeeping/list.php
@@ -68,8 +68,8 @@ $search_doc_ref = GETPOST("search_doc_ref", 'alpha');
 
 $search_doc_date = GETPOSTDATE('doc_date', 'getpost');	// deprecated. Can use 'search_date_start/end'
 
-$search_date_start = GETPOSTDATE('search_date_start', 'getpost');
-$search_date_end = GETPOSTDATE('search_date_end', 'getpostend');
+$search_date_start = GETPOSTDATE('search_date_start', 'getpost', 'auto', 'search_date_start_accountancy');
+$search_date_end = GETPOSTDATE('search_date_end', 'getpostend', 'auto', 'search_date_end_accountancy');
 
 $search_date_creation_start = GETPOSTDATE('search_date_creation_start', 'getpost');
 $search_date_creation_end = GETPOSTDATE('search_date_creation_end', 'getpostend');
diff --git a/htdocs/accountancy/bookkeeping/listbyaccount.php b/htdocs/accountancy/bookkeeping/listbyaccount.php
index d99973f7a69..5abd6f84719 100644
--- a/htdocs/accountancy/bookkeeping/listbyaccount.php
+++ b/htdocs/accountancy/bookkeeping/listbyaccount.php
@@ -69,12 +69,12 @@ $search_doc_date = GETPOSTDATE('doc_date', 'getpost');	// deprecated. Can use 's
 $search_date_startyear = GETPOSTINT('search_date_startyear');
 $search_date_startmonth = GETPOSTINT('search_date_startmonth');
 $search_date_startday = GETPOSTINT('search_date_startday');
-$search_date_start = GETPOSTDATE('search_date_start', 'getpost');
+$search_date_start = GETPOSTDATE('search_date_start', 'getpost', 'auto', 'search_date_start_accountancy');
 
 $search_date_endyear = GETPOSTINT('search_date_endyear');
 $search_date_endmonth = GETPOSTINT('search_date_endmonth');
 $search_date_endday = GETPOSTINT('search_date_endday');
-$search_date_end = GETPOSTDATE('search_date_end', 'getpostend');
+$search_date_end = GETPOSTDATE('search_date_end', 'getpostend', 'auto', 'search_date_end_accountancy');
 
 $search_date_export_startyear = GETPOSTINT('search_date_export_startyear');
 $search_date_export_startmonth = GETPOSTINT('search_date_export_startmonth');
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 4da74eb109c..60715181d98 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -1157,17 +1157,18 @@ function GETPOSTFLOAT($paramname, $rounding = '')
  * Helper function that combines values of a dolibarr DatePicker (such as Form::selectDate) for year, month, day (and
  * optionally hour, minute, second) fields to return a timestamp.
  *
- * @param 	string 		$prefix 	Prefix used to build the date selector (for instance using Form::selectDate). Example: 'select_datec'
- * @param 	string 		$hourTime	'getpost' or 'getpostend' to include hour, minute, second values from the HTTP request,
- * 									or 'XX:YY:ZZ' to set hour, minute, second respectively, for example '23:59:59'
- * 									or 'end' means '23:59:59'
- * 									or '' means '00:00:00' (default)
- * @param 	int|string 	$gm 		Passed to dol_mktime. If most cases, when used with 'getpost' or 'getpostend', it should be 'tzuserrel'.
- * @return 	int|string  			Date as a timestamp, '' or false if error
+ * @param 	string 		$prefix 		Prefix used to build the date selector (for instance using Form::selectDate). Example: 'select_datec'
+ * @param 	string 		$hourTime		'getpost' or 'getpostend' to include hour, minute, second values from the HTTP request,
+ * 										or 'XX:YY:ZZ' to set hour, minute, second respectively, for example '23:59:59'
+ * 										or 'end' means '23:59:59'
+ * 										or '' means '00:00:00' (default)
+ * @param 	int|string 	$gm 			Passed to dol_mktime. In most cases, when used with 'getpost' or 'getpostend', it should be 'tzuserrel'. Use 'auto' if you need dates related to 'tzserver' (like in accountancy).
+ * @param	string		$saverestore	Use a string context to save retrieved date so it will be used on next retrieve using same context if not defined.
+ * @return 	int|string  				Date as a timestamp, '' or false if error
  *
  * @see dol_mktime()
  */
-function GETPOSTDATE($prefix, $hourTime = '', $gm = 'auto')
+function GETPOSTDATE($prefix, $hourTime = '', $gm = 'auto', $saverestore = '')
 {
 	$m = array();
 	if ($hourTime === 'getpost' || $hourTime === 'getpostend') {
@@ -1183,13 +1184,30 @@ function GETPOSTDATE($prefix, $hourTime = '', $gm = 'auto')
 	} else {
 		$hour = $minute = $second = 0;
 	}
+
+	if ($saverestore && !GETPOSTISSET($prefix.'day') && !GETPOSTISSET($prefix.'month') && !GETPOSTISSET($prefix.'year')) {
+		$day = $_SESSION['DOLDATE_'.$saverestore.'_day'];
+		$month = $_SESSION['DOLDATE_'.$saverestore.'_month'];
+		$year = $_SESSION['DOLDATE_'.$saverestore.'_year'];
+	} else {
+		$month = GETPOSTINT($prefix . 'month');
+		$day = GETPOSTINT($prefix . 'day');
+		$year = GETPOSTINT($prefix . 'year');
+	}
+
 	// normalize out of range values
 	$hour = (int) min($hour, 23);
 	$minute = (int) min($minute, 59);
 	$second = (int) min($second, 59);
 
-	//print "$hour, $minute, $second, GETPOSTINT($prefix . 'month'), GETPOSTINT($prefix . 'day'), GETPOSTINT($prefix . 'year'), $gm<br>";
-	return dol_mktime($hour, $minute, $second, GETPOSTINT($prefix . 'month'), GETPOSTINT($prefix . 'day'), GETPOSTINT($prefix . 'year'), $gm);
+	if ($saverestore) {
+		$_SESSION['DOLDATE_'.$saverestore.'_day'] = $day;
+		$_SESSION['DOLDATE_'.$saverestore.'_month'] = $month;
+		$_SESSION['DOLDATE_'.$saverestore.'_year'] = $year;
+	}
+
+	//print "$hour, $minute, $second, $month, $day, $year, $gm<br>";
+	return dol_mktime($hour, $minute, $second, $month, $day, $year, $gm);
 }