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KB Term:
Day
Sigma KEE - Day
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day
The
Class
of all calendar
Day
s.
Relationships
Parents
timeframe
An interval of time. Note that a
TimeInterval
has both an extent and a location on the universal timeline. Note too that a
TimeInterval
has no gaps, i.e. this class contains only convex time intervals.
Children
Christmas day
An
instance
of
ChristmasDay
is a
ChristianHoliday
on which observant
member
s of
Christianity
celebrate the birth of Jesus of Nazareth. In both the Gregorian and Julian calendars,
ChristmasDay
falls on December 25th, but since the two calendars are currently off by 13 days, the
ChristmasDay
s assigned by each correspond to different actual (sidereal, UTC) days.
Friday
The
Class
of all calendar Fridays.
Monday
The
Class
of all calendar Mondays.
Saturday
The
Class
of all calendar Saturdays.
Sunday
The
Class
of all calendar Sundays.
Thursday
The
Class
of all calendar Thursdays.
Tuesday
The
Class
of all calendar Tuesdays.
Wednesday
The
Class
of all calendar Wednesdays.
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Sigma version 3.0 is
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