Easy Date Converter

Hermetic Systems, a European software publisher, has released a revised version of its venerable Easy Date Converter software. First released several years ago, this software has been continually enhanced. It performs two basic operations: (i) date arithmetic (adding and subtracting a number of days from a date, and ascertaining the number of days between dates) and (ii) conversion among dates in the Gregorian Calendar, the Julian Calendar (still in use in Russia), ordinal dates (which are in the form yyyy-ddd, that is, year and day-in-year) and Julian day numbers (used by astronomers and in calendar research).

The new version of Easy Date Converter has two major new features: (i) the ability to include or exclude weekend days and (ii) the ability to perform batch computation (a feature possessed by no other off-the-shelf date arithmetic software).

Feature (i) is especially useful for counting the number of weekdays over a certain period. For example, if you pay someone a certain amount per day, but they work only on weekdays, then how much will you need to budget for their salary each month?

Feature (ii) is to be used when a large number of date arithmetic operations have to be performed. For example, suppose you receive data in a set of many files whose names are given in ordinal format, e.g., 2005311.txt (data for the 311st day of 2005), and you want to know which dates in the calendar those ordinal dates correspond to? With this software you can simply input a file consisting of a list of the ordinal dates and it will output the corresponding dates in the Gregorian Calendar. More advanced input files can contain specifications concerning date format and date-arithmetic operations to be performed.

Easy Date Converter also allows display of any month in the Gregorian or Julian Calendars (weeks can begin either with Sunday or with Monday). It supports dates in American and European formats and handles all dates over a range of several million years. The program is bilingual, English and German, and the online user manual is in both languages. More information (including screenshots) is available at http://www.hermetic.ch/edc/edc.htm plus a link for downloading a 10-day trial version.

About Hermetic Systems:

Hermetic Systems (established in 1997) publishes over a dozen items of Windows software in diverse fields, including encryption, steganography, web authoring, secure file deletion, word-frequency counting, graphics file conversion, prime number research, cellular automata and calendar date conversion (including the Chinese Calendar and the Maya Calendar). Its web site also has numerous articles dealing mostly with calendars and computational science.

Contact:
Peter Meyer, M.Phil.
Principal Developer
Hermetic Systems
support@hermetic.ch
http://www.hermetic.ch/