diff --git a/htdocs/compta/facture/card.php b/htdocs/compta/facture/card.php
index d019b2dcf9a..6ea03d8bd23 100644
--- a/htdocs/compta/facture/card.php
+++ b/htdocs/compta/facture/card.php
@@ -393,13 +393,21 @@ if (empty($reshook)) {
 	} elseif ($action == 'setinvoicedate' && $usercancreate) {
 		$object->fetch($id);
 		$old_date_lim_reglement = $object->date_lim_reglement;
-		$date = dol_mktime(12, 0, 0, GETPOST('invoicedatemonth', 'int'), GETPOST('invoicedateday', 'int'), GETPOST('invoicedateyear', 'int'));
-		if (empty($date)) {
+		$newdate = dol_mktime(0, 0, 0, GETPOST('invoicedatemonth', 'int'), GETPOST('invoicedateday', 'int'), GETPOST('invoicedateyear', 'int'), 'tzserver');
+		if (empty($newdate)) {
 			setEventMessages($langs->trans("ErrorFieldRequired", $langs->transnoentitiesnoconv("Date")), null, 'errors');
-			header('Location: '.$_SERVER["PHP_SELF"].'?facid='.$id.'&action=editinvoicedate');
+			header('Location: '.$_SERVER["PHP_SELF"].'?facid='.$id.'&action=editinvoicedate&token='.newToken());
 			exit;
 		}
-		$object->date = $date;
+		if ($newdate > (dol_now('tzuserrel') + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
+			if (empty($conf->global->INVOICE_MAX_FUTURE_DELAY)) {
+				setEventMessages($langs->trans("WarningInvoiceDateInFuture"), null, 'warnings');
+			} else {
+				setEventMessages($langs->trans("WarningInvoiceDateTooFarInFuture"), null, 'warnings');
+			}
+		}
+
+		$object->date = $newdate;
 		$new_date_lim_reglement = $object->calculate_date_lim_reglement();
 		if ($new_date_lim_reglement > $old_date_lim_reglement) {
 			$object->date_lim_reglement = $new_date_lim_reglement;
@@ -413,7 +421,9 @@ if (empty($reshook)) {
 		}
 	} elseif ($action == 'setdate_pointoftax' && $usercancreate) {
 		$object->fetch($id);
-		$date_pointoftax = dol_mktime(12, 0, 0, $_POST['date_pointoftaxmonth'], $_POST['date_pointoftaxday'], $_POST['date_pointoftaxyear']);
+
+		$date_pointoftax = dol_mktime(0, 0, 0, GETPOST('date_pointoftaxmonth', 'int'), GETPOST('date_pointoftaxday', 'int'), GETPOST('date_pointoftaxyear', 'int'), 'tzserver');
+
 		$object->date_pointoftax = $date_pointoftax;
 		$result = $object->update($user);
 		if ($result < 0) {
@@ -986,14 +996,16 @@ if (empty($reshook)) {
 			$error++;
 		}
 
+		$dateinvoice = dol_mktime(0, 0, 0, GETPOST('remonth', 'int'), GETPOST('reday', 'int'), GETPOST('reyear', 'int'), 'tzserver');	// If we enter the 02 january, we need to save the 02 january for server
+		$date_pointoftax = dol_mktime(0, 0, 0, GETPOST('date_pointoftaxmonth', 'int'), GETPOST('date_pointoftaxday', 'int'), GETPOST('date_pointoftaxyear', 'int'), 'tzserver');
+
 		// Replacement invoice
 		if (GETPOST('type') == Facture::TYPE_REPLACEMENT) {
-			$dateinvoice = dol_mktime(12, 0, 0, GETPOST('remonth', 'int'), GETPOST('reday', 'int'), GETPOST('reyear', 'int'));
 			if (empty($dateinvoice)) {
 				$error++;
 				setEventMessages($langs->trans("ErrorFieldRequired", $langs->transnoentitiesnoconv("Date")), null, 'errors');
 				$action = 'create';
-			} elseif ($dateinvoice > (dol_get_last_hour(dol_now()) + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
+			} elseif ($dateinvoice > (dol_get_last_hour(dol_now('tzuserrel')) + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
 				$error++;
 				setEventMessages($langs->trans("ErrorDateIsInFuture"), null, 'errors');
 				$action = 'create';
@@ -1005,8 +1017,6 @@ if (empty($reshook)) {
 				$action = 'create';
 			}
 
-			$date_pointoftax = dol_mktime(12, 0, 0, GETPOST('date_pointoftaxmonth', 'int'), GETPOST('date_pointoftaxday', 'int'), GETPOST('date_pointoftaxyear', 'int'));
-
 			if (!$error) {
 				// This is a replacement invoice
 				$result = $object->fetch(GETPOST('fac_replacement', 'int'));
@@ -1049,19 +1059,16 @@ if (empty($reshook)) {
 				$action = 'create';
 			}
 
-			$dateinvoice = dol_mktime(12, 0, 0, GETPOST('remonth', 'int'), GETPOST('reday', 'int'), GETPOST('reyear', 'int'));
 			if (empty($dateinvoice)) {
 				$error++;
 				setEventMessages($langs->trans("ErrorFieldRequired", $langs->transnoentitiesnoconv("Date")), null, 'errors');
 				$action = 'create';
-			} elseif ($dateinvoice > (dol_get_last_hour(dol_now()) + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
+			} elseif ($dateinvoice > (dol_get_last_hour(dol_now('tzuserrel')) + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
 				$error++;
 				setEventMessages($langs->trans("ErrorDateIsInFuture"), null, 'errors');
 				$action = 'create';
 			}
 
-			$date_pointoftax = dol_mktime(12, 0, 0, GETPOST('date_pointoftaxmonth', 'int'), GETPOST('date_pointoftaxday', 'int'), GETPOST('date_pointoftaxyear', 'int'));
-
 			if (!$error) {
 				if (!empty($originentity)) {
 					$object->entity = $originentity;
@@ -1265,19 +1272,16 @@ if (empty($reshook)) {
 
 		// Standard invoice or Deposit invoice, created from a Predefined template invoice
 		if ((GETPOST('type') == Facture::TYPE_STANDARD || GETPOST('type') == Facture::TYPE_DEPOSIT) && GETPOST('fac_rec', 'int') > 0) {
-			$dateinvoice = dol_mktime(12, 0, 0, GETPOST('remonth', 'int'), GETPOST('reday', 'int'), GETPOST('reyear', 'int'));
 			if (empty($dateinvoice)) {
 				$error++;
 				setEventMessages($langs->trans("ErrorFieldRequired", $langs->transnoentitiesnoconv("Date")), null, 'errors');
 				$action = 'create';
-			} elseif ($dateinvoice > (dol_get_last_hour(dol_now()) + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
+			} elseif ($dateinvoice > (dol_get_last_hour(dol_now('tzuserrel')) + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
 				$error++;
 				setEventMessages($langs->trans("ErrorDateIsInFuture"), null, 'errors');
 				$action = 'create';
 			}
 
-			$date_pointoftax = dol_mktime(12, 0, 0, $_POST['date_pointoftaxmonth'], $_POST['date_pointoftaxday'], $_POST['date_pointoftaxyear']);
-
 			if (!$error) {
 				$object->socid = GETPOST('socid', 'int');
 				$object->type            = GETPOST('type');
@@ -1312,8 +1316,6 @@ if (empty($reshook)) {
 			$typeamount = GETPOST('typedeposit', 'aZ09');
 			$valuestandardinvoice = price2num(str_replace('%', '', GETPOST('valuestandardinvoice', 'alpha')), 'MU');
 			$valuedeposit = price2num(str_replace('%', '', GETPOST('valuedeposit', 'alpha')), 'MU');
-			$dateinvoice = dol_mktime(12, 0, 0, GETPOST('remonth', 'int'), GETPOST('reday', 'int'), GETPOST('reyear', 'int'));
-			$date_pointoftax = dol_mktime(12, 0, 0, GETPOST('date_pointoftaxmonth', 'int'), GETPOST('date_pointoftaxday', 'int'), GETPOST('date_pointoftaxyear', 'int'));
 
 			if (GETPOST('socid', 'int') < 1) {
 				$error++;
@@ -1325,7 +1327,7 @@ if (empty($reshook)) {
 				$error++;
 				setEventMessages($langs->trans("ErrorFieldRequired", $langs->transnoentitiesnoconv("Date")), null, 'errors');
 				$action = 'create';
-			} elseif ($dateinvoice > (dol_get_last_hour(dol_now()) + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
+			} elseif ($dateinvoice > (dol_get_last_hour(dol_now('tzuserrel')) + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
 				$error++;
 				setEventMessages($langs->trans("ErrorDateIsInFuture"), null, 'errors');
 				$action = 'create';
@@ -1807,19 +1809,16 @@ if (empty($reshook)) {
 
 		// Situation invoices
 		if (GETPOST('type') == Facture::TYPE_SITUATION && GETPOST('situations')) {
-			$dateinvoice = dol_mktime(12, 0, 0, GETPOST('remonth', 'int'), GETPOST('reday', 'int'), GETPOST('reyear', 'int'));
 			if (empty($dateinvoice)) {
 				$error++;
 				$mesg = $langs->trans("ErrorFieldRequired", $langs->transnoentitiesnoconv("Date"));
 				setEventMessages($mesg, null, 'errors');
-			} elseif ($dateinvoice > (dol_get_last_hour(dol_now()) + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
+			} elseif ($dateinvoice > (dol_get_last_hour(dol_now('tzuserrel')) + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
 				$error++;
 				setEventMessages($langs->trans("ErrorDateIsInFuture"), null, 'errors');
 				$action = 'create';
 			}
 
-			$date_pointoftax = dol_mktime(12, 0, 0, GETPOST('date_pointoftaxmonth', 'int'), GETPOST('date_pointoftaxday', 'int'), GETPOST('date_pointoftaxyear', 'int'));
-
 			if (!(GETPOST('situations', 'int') > 0)) {
 				$error++;
 				$mesg = $langs->trans("ErrorFieldRequired", $langs->transnoentitiesnoconv("InvoiceSituation"));
@@ -3514,7 +3513,8 @@ if ($action == 'create') {
 		print '</td></tr>';
 	}
 
-	$newdateinvoice = dol_mktime(12, 0, 0, GETPOST('remonth', 'int'), GETPOST('reday', 'int'), GETPOST('reyear', 'int'));
+	$newdateinvoice = dol_mktime(0, 0, 0, GETPOST('remonth', 'int'), GETPOST('reday', 'int'), GETPOST('reyear', 'int'), 'tzserver');
+	$date_pointoftax = dol_mktime(0, 0, 0, GETPOST('date_pointoftaxmonth', 'int'), GETPOST('date_pointoftaxday', 'int'), GETPOST('date_pointoftaxyear', 'int'), 'tzserver');
 
 	// Date invoice
 	print '<tr><td class="fieldrequired">'.$langs->trans('DateInvoice').'</td><td colspan="2">';
@@ -3524,7 +3524,6 @@ if ($action == 'create') {
 	// Date point of tax
 	if (!empty($conf->global->INVOICE_POINTOFTAX_DATE)) {
 		print '<tr><td class="fieldrequired">'.$langs->trans('DatePointOfTax').'</td><td colspan="2">';
-		$date_pointoftax = dol_mktime(12, 0, 0, GETPOST('date_pointoftaxmonth', 'int'), GETPOST('date_pointoftaxday', 'int'), GETPOST('date_pointoftaxyear', 'int'));
 		print $form->selectDate($date_pointoftax ? $date_pointoftax : -1, 'date_pointoftax', '', '', '', "add", 1, 1);
 		print '</td></tr>';
 	}
diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 3ae97098a79..370b10da626 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -2487,7 +2487,7 @@ function dol_getdate($timestamp, $fast = false, $forcetimezone = '')
  *										False or 0 or 'tzserver' = local to server TZ
  *										'auto'
  *										'tzuser' = local to user TZ taking dst into account at the current date. Not yet implemented.
- *										'tzuserrel' = local to user TZ taking dst into account at the given date. Use this one to convert date input from user.
+ *										'tzuserrel' = local to user TZ taking dst into account at the given date. Use this one to convert date input from user into a GMT date.
  *										'tz,TimeZone' = use specified timezone
  *	@param	int			$check			0=No check on parameters (Can use day 32, etc...)
  *	@return	int|string					Date as a timestamp, '' or false if error
diff --git a/htdocs/fourn/facture/card.php b/htdocs/fourn/facture/card.php
index db1497f5166..86ddda9769a 100644
--- a/htdocs/fourn/facture/card.php
+++ b/htdocs/fourn/facture/card.php
@@ -408,9 +408,9 @@ if (empty($reshook)) {
 			dol_print_error($db);
 		}
 	} elseif ($action == 'setdatef' && $usercancreate) {
-		$newdate = dol_mktime(0, 0, 0, $_POST['datefmonth'], $_POST['datefday'], $_POST['datefyear']);
-		if ($newdate > (dol_now() + (empty($conf->global->INVOICE_MAX_OFFSET_IN_FUTURE) ? 0 : $conf->global->INVOICE_MAX_OFFSET_IN_FUTURE))) {
-			if (empty($conf->global->INVOICE_MAX_OFFSET_IN_FUTURE)) {
+		$newdate = dol_mktime(0, 0, 0, GETPOST('datefmonth', 'int'), GETPOST('datefday', 'int'), GETPOST('datefyear', 'int'), 'tzserver');
+		if ($newdate > (dol_now('tzuserrel') + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
+			if (empty($conf->global->INVOICE_MAX_FUTURE_DELAY)) {
 				setEventMessages($langs->trans("WarningInvoiceDateInFuture"), null, 'warnings');
 			} else {
 				setEventMessages($langs->trans("WarningInvoiceDateTooFarInFuture"), null, 'warnings');
@@ -434,7 +434,7 @@ if (empty($reshook)) {
 		}
 	} elseif ($action == 'setdate_lim_reglement' && $usercancreate) {
 		$object->fetch($id);
-		$object->date_echeance = dol_mktime(12, 0, 0, $_POST['date_lim_reglementmonth'], $_POST['date_lim_reglementday'], $_POST['date_lim_reglementyear']);
+		$object->date_echeance = dol_mktime(12, 0, 0, GETPOST('date_lim_reglementmonth', 'int'), GETPOST('date_lim_reglementday', 'int'), GETPOST('date_lim_reglementyear', 'int'));
 		if (!empty($object->date_echeance) && $object->date_echeance < $object->date) {
 			$object->date_echeance = $object->date;
 			setEventMessages($langs->trans("DatePaymentTermCantBeLowerThanObjectDate"), null, 'warnings');
@@ -692,8 +692,12 @@ if (empty($reshook)) {
 			$error++;
 		}
 
-		$dateinvoice = dol_mktime(12, 0, 0, GETPOST('remonth', 'int'), GETPOST('reday', 'int'), GETPOST('reyear', 'int'));
-		$datedue = dol_mktime(12, 0, 0, GETPOST('echmonth', 'int'), GETPOST('echday', 'int'), GETPOST('echyear', 'int'));
+		$dateinvoice = dol_mktime(0, 0, 0, GETPOST('remonth', 'int'), GETPOST('reday', 'int'), GETPOST('reyear', 'int'), 'tzserver');	// If we enter the 02 january, we need to save the 02 january for server
+		$datedue = dol_mktime(0, 0, 0, GETPOST('echmonth', 'int'), GETPOST('echday', 'int'), GETPOST('echyear', 'int'), 'tzserver');
+		/*var_dump($dateinvoice.' '.dol_print_date($dateinvoice, 'dayhour'));
+		var_dump(dol_now('tzuserrel').' '.dol_get_last_hour(dol_now('tzuserrel')).' '.dol_print_date(dol_now('tzuserrel'),'dayhour').' '.dol_print_date(dol_get_last_hour(dol_now('tzuserrel')), 'dayhour'));
+		var_dump($db->idate($dateinvoice));
+		exit;*/
 
 		// Replacement invoice
 		if (GETPOST('type') == FactureFournisseur::TYPE_REPLACEMENT) {
@@ -702,7 +706,7 @@ if (empty($reshook)) {
 				$action = 'create';
 				$_GET['socid'] = $_POST['socid'];
 				$error++;
-			} elseif ($dateinvoice > (dol_get_last_hour(dol_now()) + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
+			} elseif ($dateinvoice > (dol_get_last_hour(dol_now('tzuserrel')) + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
 				$error++;
 				setEventMessages($langs->trans("ErrorDateIsInFuture"), null, 'errors');
 				$action = 'create';
@@ -766,7 +770,7 @@ if (empty($reshook)) {
 				$action = 'create';
 				$_GET['socid'] = $_POST['socid'];
 				$error++;
-			} elseif ($dateinvoice > (dol_get_last_hour(dol_now()) + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
+			} elseif ($dateinvoice > (dol_get_last_hour(dol_now('tzuserrel')) + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
 				$error++;
 				setEventMessages($langs->trans("ErrorDateIsInFuture"), null, 'errors');
 				$action = 'create';
@@ -875,7 +879,7 @@ if (empty($reshook)) {
 				$action = 'create';
 				$_GET['socid'] = $_POST['socid'];
 				$error++;
-			} elseif ($dateinvoice > (dol_get_last_hour(dol_now()) + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
+			} elseif ($dateinvoice > (dol_get_last_hour(dol_now('tzuserrel')) + (empty($conf->global->INVOICE_MAX_FUTURE_DELAY) ? 0 : $conf->global->INVOICE_MAX_FUTURE_DELAY))) {
 				$error++;
 				setEventMessages($langs->trans("ErrorDateIsInFuture"), null, 'errors');
 				$action = 'create';