World Calendar is a 12-month, perennial calendar with equal
quarters. It is perennial because it remains the same every
Our present Gregorian calendar is not perennial, but annual.
It changes every year. It does so because its typical 365-day
length, which represents the annual cycle of one Earth orbit
around the Sun, is not evenly divisible by the number of days
in the week (365 / 7 = 52, r 1). The unfortunate consequence
of that one-day remainder is that the year typically begins
and ends on the same weekday. So the next year must begin on
the following weekday. This requires a new calendar every year.
Technically, our Gregorian calendar is a variously ordered cycle
of 14 calendars. The calendar for the year beginning on Sunday
differs from the one for the year beginning on Monday, and so
on for all seven weekdays. Since the occurrence of leap year
can alter any of these seven calendars, this raises the total
to 14 calendars.
the mess the 365th day causes. If we could take that day out
of the calendar, the new year would typically begin on the very
same weekday as the previous year. And if we likewise could
take leap day out of the calendar, the new year would always
begin on the same weekday. We'd thus have a perennial calendar.
the rationale on which The World Calendar is based. Without
deviating from the solar cycle of approximately 365.24 days,
it simply regards the 365th day as a 24-hour waiting period
before resuming the calendar again. These off-calendar days,
also known as "intercalary days," aren't weekdays. It seems
most reasonable to treat them as holidays.
Benefits of The World Calendar
World Calendar, promoted by The World Calendar Association beginning
in 1930, has noticeable benefits for scheduling and planning
that the Gregorian calendar lacks. Other advantages are less
days of the month always fall on the same weekdays:
so the birthday of Tuesday's Child is always on a Tuesday.
need to schedule events by cumbersome weekday-and-month
designations, like "The first Tuesday after the first Monday
year divides regularly into quarters of equal size (91 days),
with the same number of workdays (65) and weekend-days (26)
in each quarter: a great improvement over the Gregorian
calendar for statistical comparisons between quarters.
The variations in month-length are more regular than the
Gregorian calendar: most months have 30 days; the first
months of thequarters (January, April, July, October)
Excluding Sundays, all months have the same number of
THE CHART VERSION, TOO
building on preparation that
has already begun, transition from the Gregorian calendar
will be effortless and straightforward. Seamless reform instituted
on 1 January 2017 (or 2023 or whatever it takes) -otherwise a Gregorian year beginning on
Sunday- won't even bring noticeable change until the end of
February that year. The seven dates affected at the ends of February,
March, April, May, August and will then become
completely dependable annual fixtures of years thereafter.
Just as The World Calendar is simple, so will be its continued
web site is designed so that visitors may achieve an appreciation
for this unique calendar. Within context of calendar history
and consequential results, acting towards THE
WORLD CALENDAR IN 2012 becomes part of daily priorities.