- #HOW TO CHANGE OPEN OFFICE DATE FORMAT FOR MAC#
- #HOW TO CHANGE OPEN OFFICE DATE FORMAT SERIAL#
- #HOW TO CHANGE OPEN OFFICE DATE FORMAT WINDOWS#
In the When a two-digit year is entered, interpret it as a year between box, change the upper limit for the century.Īs you change the upper-limit year, the lower-limit year automatically changes. In the Region dialog box, click Additional settings. Under Clock, Language and Region, click Change date, time, or number formats In the search box on the taskbar, type control panel, and then select Control Panel.
#HOW TO CHANGE OPEN OFFICE DATE FORMAT WINDOWS#
In Microsoft Windows, you can change the way two-digit years are interpreted for all Windows programs that you have installed. For example, if you type the date 5/28/98, Excel assumes the date is May 28, 1998. For example, if you type the date 5/28/19, Excel assumes the date is May 28, 2019.ģ0 through 99 is interpreted as the years 1930 through 1999. If you enter a date with a two-digit year in a text formatted cell or as a text argument in a function, such as =YEAR("1/1/31"), Excel interprets the year as follows:Ġ0 through 29 is interpreted as the years 2000 through 2029. By entering four-digit years, Excel won't interpret the century for you. Important: To ensure that year values are interpreted as you intended, type year values as four digits (for example, 2001, not 01). 1,462 days is equal to four years and one day (which includes one leap day).
#HOW TO CHANGE OPEN OFFICE DATE FORMAT SERIAL#
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.
The difference between the two date systems is 1,462 days 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. For example, Jcan have two different serial values, depending on the date system that is used. The following table shows the first date and the last date for each date system and the serial value associated with each date.īecause the two date systems use different starting days, the same date is represented by different serial values in each date system.
#HOW TO CHANGE OPEN OFFICE DATE FORMAT FOR MAC#
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. 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. The default date system for Excel for Windows is 1900 and the default date system for Excel for Mac is 1904. Both Excel for Mac and Excel for Windows support the 19 date systems.
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