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What does DFOY stand for?

DFOY stands for Day Fraction of the Year

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This definition appears very rarely

Other Resources: Acronym Finder has 1 verified definitions for DFOY

Samples in periodicals archive:

500000. However, three decimal places are usually sufficient to represent the time of day within one standard minute, and represent both Swatch. beats and French decimal minutes. Fractional days can be added to: Calendar dates with fractional day of month ( 2004 June 29. 286003 ) Ordinal dates with fractional day of year ( 04181. 286003 ) Julian Dates (.
The Answer: Astronomically speaking, a year is 365.2424 days. Putting that into a fraction is 1/365.2424, which multiplying by 10000, simplifies to.
YearFraction = yearfrac(StartDate, EndDate, Basis) returns a fraction based on the number of days between dates StartDate and EndDate using the given day-count basis.
There are two outputs, the decimal date (can be a vector), and the fraction of the year completed by that date. From the example above, the fraction of the year is: "0.