diff --git a/app/src/main/java/org/linphone/ui/main/meetings/viewmodel/ScheduleMeetingViewModel.kt b/app/src/main/java/org/linphone/ui/main/meetings/viewmodel/ScheduleMeetingViewModel.kt
index 4b2cfe512..7afc6f674 100644
--- a/app/src/main/java/org/linphone/ui/main/meetings/viewmodel/ScheduleMeetingViewModel.kt
+++ b/app/src/main/java/org/linphone/ui/main/meetings/viewmodel/ScheduleMeetingViewModel.kt
@@ -301,7 +301,8 @@ class ScheduleMeetingViewModel
 
     @UiThread
     fun setStartDate(timestamp: Long) {
-        val cal = Calendar.getInstance()
+        // Material date picker always returns a timestamp in UTC timezone !
+        val cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"))
         cal.timeInMillis = timestamp
 
         startYear = cal.get(Calendar.YEAR)