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  TimeInterval

Sigma KEE - TimeInterval
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time interval
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.
Relationships      
Parents time position Any TimePoint or TimeInterval along the universal timeline from NegativeInfinity to PositiveInfinity.
Children ante meridiemThe class of TimeIntervals that begin at midnight and end at noon.
 breakfast timeBreakfastTime is the time interval by which the first meal of the day is typically eaten, which is in the morning
 dayThe Class of all calendar Days.
 day timeThe class of TimeIntervals that begin at Sunrise and end at Sunset.
 DecadeThe Class of all calendar Decades.
 dhu al hijjahDhu al-Hijja is the twelfth and final month in the Islamic Calendar. It is also known as Thw al-Hijja. This is a very sacred month in the Islamic calendar, marking the end of the year. It is in this month in which the Hajj Pilgrimage takes place. 'Dhu al-hijjah' literally means 'Lord of the Pilgrimage'. It is during this month that pilgrims from all around the world congregate at Mecca to visit the Kaaba. The Hajj is performed on the eighth, ninth and the tenth of this month. Eid ul-Adha, the 'Festival of the Sacrifice', is held on the tenth day. (from Wikipedia)
 dinner timeDinnerTime is the time interval by which dinner, or the evening meal, is typically eaten, which is usually sometime during the evening
 holidayHoliday is the class of time periods that are observed as holidays in a country, culture, or religion. Holidays may recur annually on the same date, or they may be moveable, for example, UnitedStatesThanksgivingDay falls on the last Thursday of each November.
 hourThe Class of all clock Hours.
 lunch timeLunchTime is the time interval by which lunch, or the mid-day meal, is typically eaten, which is usually sometime between 11am and 3pm
 minuteThe Class of all clock Minutes.
 monthThe Class of all calendar Months.
 night timeThe class of TimeIntervals that begin at Sunset and end at Sunrise.
 post meridiemThe class of TimeIntervals that begin at noon and end at midnight.
 QuarterYearA period of three months.
 ramadanRamadan is the ninth month of the Islamic calendar. It is the Islamic month of fasting, in which participating Muslims refrain from eating, drinking, having sex, smoking, and indulging in anything that is in excess or ill-natured; from dawn until sunset. [Wikipedia]
 season of yearSeasonOfYear is the class of four seasons correlated with the calendar Year and associated with changes in the length of daylight and with overall temperature changes. Depending upon the GeographicArea, a SeasonOfYear may also be associated with weather patterns (e.g., rainy, dry, windy). The characteristics of seasons (cold vs. hot temperatures, long vs. short days) are reversed from the NorthernHemisphere to the SouthernHemisphere.
 secondThe Class of all clock Seconds.
 sunriseThe TimeInterval of each Day when the sun is rising and is partially overlapped by the horizon line.
 sunsetThe TimeInterval of each Day when the sun is setting and is partially overlapped by the horizon line.
 weekThe Class of all calendar weeks.
 weekendAny Saturday and Sunday which are contiguous.
 yearThe Class of all calendar Years.


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