Examples of using Date system in English and their translations into Hebrew
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Colloquial
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Ecclesiastic
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Computer
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Programming
For background information, see Date systems in Excel.
The default date system for Excel for Windows is 1900;
The year is interpreted by Excel according to your computer's date system.
You can change the date system by doing the following.
The date system changes automatically when you open a document from another platform.
Excel interprets the year argument according to the date system your computer is using.
And the default date system for Excel for Mac is 1904.
It accommodates a variety of sources,including esoteric ones less appropriate to the author- date system.
Excel interprets the year argument according to the date system used by the local computer.
Because the two date systems use different starting days,the same date is represented by different serial values in each date system.
Excel interprets the year argument according to the date system set up on your computer.
You can encounter problems when you copy and paste dates orwhen you create external references between workbooks based on the two different date systems.
The following table shows the first date andthe last date for each date system and the serial value associated with each date. .
Issue: I'm havingproblems with dates between workbooks that use different date systems.
For compatibility with Lotus 1-2-3, the 1900 Date System incorrectly accepts the date February 29, 1900, however, 1900 was not a leap year.[4].
For example, July 5, 2007 can have two different serial values,depending on the date system that is used.
That is, the serial value of a date in the 1900 date system is always 1,462 days greater than the serial value of the same date in the 1904 date system.
Under the When calculating this workbook section, select the workbook that you want,and then select or clear the Use 1904 date system check box.
Conversely, the serial value of a date in the 1904 date system is always 1,462 days less than the serial value of the same date in the 1900 date system.
For example, if you are working in Excel and you open a document that was created in Excel for Mac,the 1904 date system check box is selected automatically.
This means that the serial number of a date in the 1900 date system is always 1,462 days greater than the serial number of the same date in the 1904 date system.
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 January 1, 1900, in the 1900 Date System, or January 1, 1904, in the 1904 Date System and was the default for Macintosh prior to Excel 2016. Numbers smaller than this display as a VALUE! error.[2][3].
This means that the serial number of a date in the 1900 date system is always 1,462 days greater than the serial number of the same date in the 1904 date system.
Originally, Excel for Mac was based on the 1904 date system, because it enabled better compatibility with early Macintosh computers that did not support dates before January 2, 1904, and therefore it became the default date system.
For example, if you copy the date July 5,2007 from a workbook that uses the 1900 date system and then paste the date into a workbook that uses the 1904 date system, the date appears as July 6, 2011, which is 1,462 days later.
Originally, excel for windows was based on the 1900 date system, because it enabled better compatibility with other spreadsheet programs that were designed to run under ms-dos and microsoft windows, and therefore it became the default date system.
Alternatively, if you copy the date July 5,2007 from a workbook that uses the 1904 date system and then paste the date into a workbook that uses the 1900 date system, the date appears as July 4, 2003, which is 1,462 days earlier.
A four-year cycle was important, which must have helped structure a sense of the passing years: at Athens, the festival of the Panathenaia was celebrated on a grander scale every fourth year as the Great Panathenaia,but that was not used as the basis of a dating system.