diff --git a/web/ASC.Web.Api/Api/Settings/SettingsController.cs b/web/ASC.Web.Api/Api/Settings/SettingsController.cs
index 68d04787639..e5a579f1936 100644
--- a/web/ASC.Web.Api/Api/Settings/SettingsController.cs
+++ b/web/ASC.Web.Api/Api/Settings/SettingsController.cs
@@ -183,7 +183,7 @@ public async Task<SettingsDto> GetSettingsAsync(bool? withpassword)
             settings.TrustedDomains = tenant.TrustedDomains;
             settings.TrustedDomainsType = tenant.TrustedDomainsType;
             var timeZone = tenant.TimeZone;
-            settings.Timezone = timeZone;
+            settings.Timezone = _timeZoneConverter.WindowsTzId2OlsonTzId(timeZone);
             settings.UtcOffset = _timeZoneConverter.GetTimeZone(timeZone).GetUtcOffset(DateTime.UtcNow);
             settings.UtcHoursOffset = settings.UtcOffset.TotalHours;
             settings.OwnerId = tenant.OwnerId;