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  2. Expiration date - Wikipedia

    en.wikipedia.org/wiki/Expiration_date

    Expiration dates for infant formula should not be ignored. [6] If formula is stored too long, it may lose its nutritional value. [6] The expiration date of pharmaceuticals specifies the date the manufacturer guarantees the full potency and safety of a drug. Most medications continue to be effective and safe for a time after the expiration date.

  3. Time formatting and storage bugs - Wikipedia

    en.wikipedia.org/wiki/Time_formatting_and...

    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 ...

  4. Year 1900 problem - Wikipedia

    en.wikipedia.org/wiki/Year_1900_problem

    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 ...

  5. Shelf life - Wikipedia

    en.wikipedia.org/wiki/Shelf_life

    The expiration date of pharmaceuticals specifies the date the manufacturer guarantees the full potency and safety of a drug. Most medications continue to be effective and safe for a time after the expiration date. A rare exception is a case of renal tubular acidosis purportedly caused by expired tetracycline. [9]

  6. Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel

    Microsoft Excel is a spreadsheet editor developed by Microsoft for Windows, macOS, Android, iOS and iPadOS.It features calculation or computation capabilities, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications (VBA).

  7. First Expired, First Out - Wikipedia

    en.wikipedia.org/wiki/First_expired,_first_out

    First Expired, First Out (FEFO) is a term used in field inventory management to describe a way of dealing with the logistics of products that have a limited shelf life. These items include perishable products or consumer goods with a specified expiration date. The product with the deadline for the next intake will be the first to be served or ...

  8. Microsoft Office 2010 - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Office_2010

    Office 2010 Beta was a free, fully functional version and expired on October 31, 2010. [ 53 ] In an effort to help customers and partners with deployment of Office 2010, Microsoft launched an Office 2010 application compatibility program with tools and guidance available for download. [ 54 ]

  9. Certificate revocation list - Wikipedia

    en.wikipedia.org/wiki/Certificate_revocation_list

    Expiration dates are not a substitute for a CRL. While all expired certificates are considered invalid, not all unexpired certificates should be valid. CRLs or other certificate validation techniques are a necessary part of any properly operated PKI, as mistakes in certificate vetting and key management are expected to occur in real world ...