COMPARISON OF PROPOSED SOLAR PERPETUAL CALENDARS

 

Aristeo Fernando initially presented a comparison between the Aristean calendar and Henry's Calendar & Time Plan in the calendar discussion list, CALNDR-L, on 24 January 2005. Karl Palmen added seven other proposed solar perpetual calendars in the comparison on 25 January 2005. Below is what Mr Palmen presented which Mr Fernando tabulated and grouped into three kinds (with some minor changes):

  1. 28 days per month - International Fixed Calendar (IFC), Colligan's Pax Calendar (Pax), and Raventos Symmetrical Calendar (Rav).
  2. 30 & 31-days quarters - Henry's Calendar & Time Plan (C&T), Bob McClennon's Reformed Weekly Calendar (RWC), World Calendar (WC), and Aristean Calendar.
  3. 28 & 35-days quarters - Bonavian Civil Calendar (BCC) and Symmetry 454 Calendar (454).

 

 

IFC

Pax

Rav

C&T

RWC

WC

Aristean

BCC

454

Days in each quarter

3 1/4 months of 28 days

3 1/4 months of 28 days

3 1/4 months of 28 days

30-30-31

31-30-30

31-30-30

31-30-30

35-28-28

28-35-28

Week begins

Sunday

Sunday

Monday

Sunday

Undecided

Sunday

Monday

Sunday

Monday

Monthless and dateless days

Uncertain

None

None

None

None

One per year + leap day

None

None

None

Mini-month (also intercalary month)

None

Yes (Pax with seven days)

None

Yes (Newton with seven days)

Yes (Leap Week)

None

None

None

None

Days in common year

365

364

365

364

364

365

365

364

364

Days in Leap Year

366

371

366

371

371

366

366

371

371

Leap Year

As Gregorian

Years ending in 06, 12, every six years to 96 then 99 and also 00 unless divisible by 400

As Gregorian

Years with 53 Thursdays in Gregorian Calendar as listed in a table

Every 5 years with exceptions

As Gregorian

As Gregorian

Five years every 28 years with one exception every 896 years

Either years with 53 Thursdays in Gregorian Calendar or an astrono-mical rule

Leap Days

June 29 or day between June and New Month (Sol or Midi)

Pax 1-7

December 30

Newton 1-7

Leap Week 1-7

Between June 30 and July 1

June 31

December 29-35

December 29-35

Leap Day (s) at end of year

No

No

Yes

No

Yes

No

No

Yes

Yes

Months (all have months January to December

13 including month of Sol or Midi between June and July

13 including Columbus between November and December + Pax in leap years

13 including Vacance between July and August

12 + the mini-month every leap year

12 + leap week

12

12

12

12

Deleted dates from Gregorian calendar

29th, 30th, and 31st days of months

29th, 30th, and 31st days of months

29th, 30th, and 31st days of months

Jan 31, May 31, Jul 31, Aug 31, Oct 31 (5 dates)

Mar 31, May 31, Aug 31, Dec 31 (4 dates)

Mar 31, May 31, Aug 31, Dec 31 (4 dates)

Mar 31, May 31, Aug 31 (3 dates)

29th, 30th, and 31st days of Feb, Mar, May, Jun, Aug, Sep, Nov, and Dec

29th, 30th, and 31st days of Jan, Mar, Apr, Jun, Jul, Sep, Oct, and Dec

Friday the 13th

In all 13 months

In all 13 months

None

In four months (Jan 13, Apr 13, Jul 13, and Oct 13)

Four months or none

In four months (Jan 13, Apr 13, Jul 13, and Oct 13)

None

In all 13 months

None

Days outside of 7-day week

Leap Day and New Year's Eve

None -

7-day week uninter-rupted

December 29 and Leap Day (December 30)

None -

7-day week uninter-rupted

None -

7-day week uninter-rupted

Leap Day and New Year's Eve

Leap Day and New Year's Eve

None -

7-day week uninter-rupted

None -

7-day week uninter-rupted

Calendar weeks that agree with current 7-day week

About 1 in 7 weeks

All weeks

About 1 in 7 weeks

All weeks

All weeks

About 1 in 7 weeks

About 1 in 7 weeks

All weeks

All weeks

All months begin on same day of week

Yes

Yes

Yes

No

No

No

No

Yes

Yes

Approxi-mate variation of new year against seasons

2 days

2 to 3 weeks

2 days

1 week

2 to 3 weeks

2 days

2 days

2 weeks

1 week

Every month but one the same each year

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

 

The URLs of these calendar proposals are:

IFC - http://personal.ecu.edu/mccarty/eastman.html

Pax - http://personal.ecu.edu/mccartyr/colligan.html

Rav - No working URL (unless you know otherwise)

C&T - http://henry.pha.jhu.edu/calendarDir/calendar.reform.html

RWC - http://www.go2zero.com/rwc/rwc.html

WC - http://personal.ecu.edu/mccartyr/world-calendar.html

Aristean - http://www.geocities.com/peacecrusader888/calendaridx.htm

BCC - http://personal.ecu.edu/mccartyr/bonavian.html

454 - http://individual.utoronto.ca/kalendis/symmetry.htm

 

File: comparesolar.htm - Last updated: 2005 February 8

 

HomeRevelationsProphecies888 - Number of JesusCrucifixionTeachings in Pilipino

Aristean CalendarAristean Decimal TimeAristean CycleWorld PeacePostingsSite Map