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Microsoft Excel (using the default 1900 Date System) cannot display dates before the year 1900, although this is not due to a two-digit integer being used to represent the year: Excel uses a floating-point number to store dates and times. The number 1.0 represents the first second of January 1, 1900, in the 1900 Date System (or January 2, 1904 ...
The leap year problem (also known as the leap year bug or the leap day bug) is a problem for both digital (computer-related) and non-digital documentation and data storage situations which results from errors in the calculation of which years are leap years, or from manipulating dates without regard to the difference between leap years and common years.
On 5 January 1975, the 12-bit field that had been used for dates in the TOPS-10 operating system for DEC PDP-10 computers overflowed, in a bug known as "DATE75". The field value was calculated by taking the number of years since 1964, multiplying by 12, adding the number of months since January, multiplying by 31, and adding the number of days since the start of the month; putting 2 12 − 1 ...
[b] This meant that a date such as 29 January, while being toward the end of a legal year, would also be near the beginning of the following "common" (and Scottish) year. It was to show this duality that the system of displaying two year numbers first came into use — examples may be seen on memorial tablets and in parish registers.
Excel maintains 15 figures in its numbers, but they are not always accurate; mathematically, the bottom line should be the same as the top line, in 'fp-math' the step '1 + 1/9000' leads to a rounding up as the first bit of the 14 bit tail '10111000110010' of the mantissa falling off the table when adding 1 is a '1', this up-rounding is not undone when subtracting the 1 again, since there is no ...
“Not seeing angel numbers does not indicate that there is anything wrong with you,” Wilder points out. “One might see angel numbers more or less in periods in their life when the energy they ...
This meant that programs facing two-digit years could not distinguish between dates in 1900 and 2000. Dire warnings at times were in the mode of: The Y2K problem is the electronic equivalent of the El Niño and there will be nasty surprises around the globe. — John Hamre, United States Deputy Secretary of Defense [15]
Wikipedia:Manual of Style (dates and numbers) gives the general principles of how Wikipedia deals with the representation of numbers and dates. This present naming conventions guideline concentrates on the aspect of how numbers and dates are represented in article titles, that is the names of the articles where the content is (as opposed to redirect pages that also allow non-standardized ...