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-rw-r--r--calendar/gui/e-date-time-list.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/calendar/gui/e-date-time-list.c b/calendar/gui/e-date-time-list.c
index 70a4578f70..4ca04a3f16 100644
--- a/calendar/gui/e-date-time-list.c
+++ b/calendar/gui/e-date-time-list.c
@@ -525,6 +525,9 @@ e_date_time_list_set_use_24_hour_format (EDateTimeList *date_time_list,
{
g_return_if_fail (E_IS_DATE_TIME_LIST (date_time_list));
+ if ((date_time_list->use_24_hour_format ? 1 : 0) == (use_24_hour_format ? 1 : 0))
+ return;
+
date_time_list->use_24_hour_format = use_24_hour_format;
g_object_notify (G_OBJECT (date_time_list), "use-24-hour-format");