diff --git a/Telegram/SourceFiles/history/view/history_view_schedule_box.cpp b/Telegram/SourceFiles/history/view/history_view_schedule_box.cpp
index ba45eff07..cb28ae824 100644
--- a/Telegram/SourceFiles/history/view/history_view_schedule_box.cpp
+++ b/Telegram/SourceFiles/history/view/history_view_schedule_box.cpp
@@ -137,7 +137,7 @@ private:
 
 QTime ValidateTime(const QString &value) {
 	const auto match = QRegularExpression(
-		"^(\\d\\d)\\:(\\d\\d)$").match(value);
+		"^(\\d{1,2})\\:(\\d\\d)$").match(value);
 	if (!match.hasMatch()) {
 		return QTime();
 	}