Use locale timezone to export CSV in locale format

Closes #12224

sao/CHANGELOG

@@ -1,3 +1,4 @@
+* Use locale timezone for CSV in locale format
 
 Version 6.8.0 - 2023-05-01
 --------------------------

sao/src/window.js

@@ -2250,7 +2250,7 @@
         line.forEach(function(val, i) {
             if (locale_format) {
                 if (val.isDateTime) {
-                    val = val.format(
+                    val = val.local().format(
                         Sao.common.date_format() + ' ' +
                         Sao.common.moment_format('%X'));
                 } else if (val.isDate) {
@@ -2265,6 +2265,8 @@
                             'maximumFractionDigits': 20,
                         });
                 }
+            } else if (val.isDateTime) {
+                val = val.utc();
             } else if (val.isTimeDelta) {
                 val = val.asSeconds();
             } else if (typeof(val) == 'boolean') {

tryton/CHANGELOG

@@ -1,3 +1,4 @@
+* Use locale timezone for CSV in locale format
 * Display sum on column header
 
 Version 6.8.0 - 2023-05-01

tryton/tryton/gui/window/win_export.py

@@ -433,6 +433,7 @@ class WinExport(WinCSV):
                 if isinstance(val, Number):
                     val = locale.str(val)
                 elif isinstance(val, datetime.datetime):
+                    val = common.timezoned_date(val)
                     val = val.strftime(common.date_format() + ' %X')
                 elif isinstance(val, datetime.date):
                     val = val.strftime(common.date_format())