Bearbeiten von „Custom Calendar and Scheduler“

Custom calendar ideas

== Should support ==

=== Dates ===

==== Gregorian date ====
365 days in the usual combination of 12 months, one extra day (29th February) on leap years.

Leap years are:
* divisible by 4
* not divisible by 100 years
* divisible by 400 years

==== Julian date ====
365 days in the usual combination of 12 months, one extra day (29th February) on leap years.

Leap years are:
* divisible by 4

==== Han date ====
(Traditional Chinese calendar)
12 or 13 months with 29 or 30 days, depending on the lunar cycle (months start and end on a new moon) per year.

Leap years are on a 19-year Metonic cycle:
* lcclcclcclclcclcclc

==== Dorian date ====
(Martian calendar)

24 months of 27 or 28 days. 668 days per year on "normal" years, 669 on "leap" ones 

Month names:

Sagittarius 	  	Dhanus 	  	Capricornus Makara 	  	Aquarius 	  	Kumbha Pisces 	  	Mina 	  	Aries Mesha 	  	Taurus 	  	Rishabha Gemini 	  	Mithuna 	  	Cancer Karka 	  	Leo 	  	Simha Virgo 	  	Kanya 	  	Libra Tula 	  	Scorpius 	  	Vrishika

Leap years are:
* odd (not divisible by 2) or divisible by 10 (end in a 0)
* not divisible by 100
* divisible by 500

=== Day divisions ===

==== In equal parts ====
* day/night
* quarters (morning, noon, evening, midnight)
* twelves (see: traditional Chinese/Han calendar)
* hours
* hours + minutes
* hours + minutes + seconds