Calendar Objx - Appointments and task scheduling management component. By FarPoint Technologies Inc. - http://www.fpoint.com/products/calendar/calendar.aspx
Solutions::Schedule - A component product for creating resource scheduling applications. By DBI Tech. [Commercial] - http://www.dbi-tech.com/Product_Page_Solutions_Schedule.htm
ActiveGantt Scheduler - Can be typically used to display appointments, tasks or other kinds of programmed activities. [Component, Commercial] - http://www.sourcecodestore.com/ActiveGanttVB20/productsheet.htm
AliveSites Calendar - Easily add events to calendar. Includes start and end time, description, recurring events, day/week/month/list views. Events can be categorized based on permissions. - http://www.alivesites.com/default.asp?id=109
SamLogic Calendar Components - A collection of powerful international calendar ActiveX components. Can show public holidays for many countries and week numbers. - http://www.samlogic.net/components-calendar/calendar.htm
DateUtilX - Exposes methods and properties to manipulate date and calendar date types, including support for business related date functionality. By Mckisic Software, Inc. - http://www.mckisicsoftware.com/DateUtilX/dateutilx.htm
plexityHide Gantt Time Package - Provides visualization of information over time. By plexiHide.com. - http://www.plexityhide.com/
Timers OCX - A set of timers that expand on the timer control supplied with Microsoft Visual Basic. [Component, Commercial] - http://www.april-16.co.uk/products/timers/
DayView OCX - A diary styled daily calendar which stores appointments which can be interacted with by the user. [Control, Commercial] - http://www.april-16.co.uk/products/dayview/