Date and Time Calculator
Date and Time Calculator will let you easily add and subtract dates and time intervals. It features common date-related calculations, detailed date information (julian day number, day of year, etc), moon phase information, birth date calculator, due date calculator, and much more!
http://www.diplodock.com/program/dtc.exe - 2Mb - Download - Screenshot

CSC Date Calculator
CSC Date Calculator counts the days before, after and between selected dates. You can even tell CSC Date Calculator which days not to count like weekends and vacations. You decide. CSC Date Calculator counts the days with professional precision and super speed. ... Purchase CSC Date Calculator for your staff and watch docketing errors disappear. ... Make their day better and show them you understand a chief source of tension in the law office. ... Don't waste tijme counting and recounting days on your desk calendar and spend the time you save with your newspaper and coffee instead.
http://computersolutioncentral.com/download/cscdc/CSCv2x.exe - 743Kb - Download - Screenshot

DirDate
DirDate is a command line tool that can easily be automated to change files' last modification date, creation date or last access date. It can change dates using either a reference file (where you can 'lift' the date from an existing file), the current date/time or a series of YEAR, MONTH, DAY,... Simple example - set all file creation dates to Christmas day: dirdate -CREATION date=12/25/2000 time=12:00:00 *. ... WAV files on drive X: to the creation date of a correspondingly-named . ... BAT command to alter the creation date of all .
http://www.datamystic.com/dirdate.exe - 624Kb - Download - Screenshot

Date Calculator
Date Calculator performs a variety of calendar related functions useful in business. It will display a calendar for any month of any year. It will calculate the number of days between any two dates, optionally not counting certain days of the week, such as Saturday and Sunday. ... It can automatically remind you of your appointments for the day, or show you a list of all your stored appointments, or only those appointments on any date you select. ... It can also calculate the date X days before or after a given date, again optionally only counting certain user selected days of the week.
http://leithauserresearch.com/datecarc.exe - 493Kb - Download - Screenshot

Talking Secretary
Create reminders based on any dates, days or events, and never forget again. This will say the day and time out loud for you, read messages to you, play MP3 files, play video reminders, and display customized messages based on days of the week, weekends, specific dates, or even monthly dates. ... You can create reminders or alarms to occur on specific days of each week or weekend, on a specific date or time you choose, or even any specific day of the month or month end. ... The voice activation will announce the day and time for you, and will read customized reminder messages to you.
http://www.justtext.com/files/talkingt.exe - 705Kb - Download

WinDay
Winday is a fast, small calendar program developed for use in Windows 95/98/ME/NT/2000. In a single screen, this program gives the current (system) date and time, and some information of interest for that day, such as that encountered in an almanac. ... The information given (besides time and date) includes: anniversaries, moon phase, sunrise and sunset; if applicable for that day, religious observances, astronomical events and special messages are indicated. ... A thought for the day is also given.
http://www.castillobueno.com/WinDay25.EXE - 892Kb - Download - Screenshot

Chinese Calendrics
The Chinese Lunar Calendar is a solilunar calendar, consisting of months corresponding exactly to lunar cycles and years which stay more-or-less in sync with seasonal years. The structure of the calendar depends on the exact times of certain astronomical events, principally dark moons and winter... To calculate the date of New Year's Day in the Chinese lunar calendar. ... To move forward or backward from a given date (and time) either by a period such as a month (Western or Chinese) or by any number of days.
http://www.hermetic.ch/chcal/chcal_setup.zip - 2Mb - Download - Screenshot

aCalendarForge
aCalendarForge builds HTML pages to show events in multiple formats, including calendars, agenda, and logs. Event files can be tab separated text, and come from spreadsheets or databases. Events can include date and time, name, image, web link and descriptions. ... Time controls include time span, day names, start time for days, and first day of the week. ... Users can determine appearance and style factors such as headings, background, and dates.
http://www.edenllc.com/dload/aCalFac-10-cocoa.sit - 527Kb - Download - Screenshot

MiniMinder
MiniMinder serves up a slick, daily countdown for all the upcoming events you wish to track. You can set yearly, quarterly, monthly or daily events, events such as the 4th Thursday of the month, events in increments such as every 28 days, you can set alarms to popup at specific times throughout... Despite all these great features and more, MiniMinder has still managed to keep it simple when it comes to adding your dates - the streamlined Events Editor form makes adding an entire calendar full of dates quick and painless.
http://www.vellosoft.com/MiniMind.exe - 3Mb - Download - Screenshot

SAM
SAM is a collection of useful utilities that can help you in day to day life. SAM is easily accesibly via the system tray or using keyboard shortcuts. The modules include: Reminders - Helps you to remember tasks. Jotter - A quick notes module. ToDo - manage your tasks easily. ... Stop Watch - Count time. ... Calendar Utils - All sorts of date calculations. ... Timer - Counts time backwards. ... World Times - Different time zone clocks. ... Small Calc - A small sized calculator. ... Tables - Greek and Russian alphabets, International dialing codes.
http://www.metalgrass.com/downloads/bin/sam.exe - 2Mb - Download - Screenshot