The Tell Your Story Community Cooperation Blog Home combines
United Nations proposal: The World Calendar + The Holocene Calendar
Example:
Gregorian dt.: Sunday, August 10, 2014 Was:
U.N. Date : Thursday, August 9, 12014 H.E. (Holocene Era)

Today's 'normal' date is:
Today's U.N. Date is:


A very complete old Geocities page, available via The WayBack Machine on HE
MMeade on HE

Gregorian (and other) calendar to The World Calendar converters:

Well-explained with the daily date in JavaScript

Many Calendars Converted for any day you give...

Perl converter