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The aim is to promote clarity, cohesion, and consistency, and to make the encyclopedia easier and more intuitive to use. For numbers, dates, and similar items in Wikipedia article titles, see the "Naming conventions (numbers and dates)" guideline. Where this manual gives options, maintain consistency within an article unless there is a good ...
Wikipedia, a free-content online encyclopedia written and maintained by a community of volunteers known as Wikipedians, began with its first edit on 15 January 2001, two days after the domain was registered. [2] It grew out of Nupedia, a more structured free encyclopedia, as a way to allow easier and faster drafting of articles and translations.
Our date code converter is here to help. It supports numerous formats mentioned in our How to Read Expiration Dates article and their variations. Simply enter the code (like 052124 or 13156 ) into the input below and click the button to see the converted date.
- Two Dozen Epochs
- Unix Epoch Common, But Not Dominant
- ISO 8601
- Count of What Since Epoch
Time in computing is not always tracked from the beginning of 1970 UTC. While that epoch reference is popular, various computing environments over the decades have used at least nearly two dozen epochs. Some are from other centuries. They range from year 0 (zero) to 2001. Here are a few.
The beginning of 1970 is popular, probably because of its use by Unix. But by no means is that dominant. For example: 1. Countless millions (billions?) of Microsoft Excel & Lotus 1-2-3 documents use January 0, 1900(December 31, 1899). 2. The world now has over a billion iOS/OS X devices using the Cocoa (NSDate) epoch of 1 January 2001, GMT. 3. The ...
Assuming a count-since-epoch is using the Unix epoch is opening a big vulnerability for bugs. Such a count is impossible for a human to instantly decipher, so errors or issues won't be easily flagged when debugging and logging. Another problem is the ambiguity of granularity explained below. I strongly suggest instead serializing date-time values a...
Another issue with count-since-epoch time tracking is the time unit, with at least four levels of resolution commonly used. 1. Seconds The original Unix facilities used whole seconds, leading to the Year 2038 Problemwhen we reach the limit of seconds since 1970 if stored as a 32-bit integer. 2. Milliseconds Used by older Java libraries, including t...
This category has the following 14 subcategories, out of 14 total. 2090s by continent (2 C) 2090s by country (2 C) 2090s by month (8 C) 2090s by topic (9 C)
2090: The September 11th Victim Compensation Fund is set to expire. 2092: Work on cleaning up the site of the Oldbury Nuclear Power Station is scheduled to be complete in 2092 (early estimate). 2094: 7 April: Mercury transits Jupiter, this is the only known such event of the decade. 2096:
Radiocarbon dating (also referred to as carbon dating or carbon-14 dating) is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon . The method was developed in the late 1940s at the University of Chicago by Willard Libby.
