<cc1:DateTimeControl ShowWeekNumber="true" HoursMode24="true" DateOnly="false" ID="dtStartTime" runat="server"></cc1:DateTimeControl>
this.dtStartTime.SelectedDate.ToString("yyyy-MM-dd 00:00")
转载于:https://www.cnblogs.com/leening/archive/2010/05/07/1729657.html