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  2. System time - Wikipedia

    en.wikipedia.org/wiki/System_time

    System.DateTime.UtcNow [20] 100 ns [21] 1 January 0001 to 31 December 9999 CICS: ASKTIME: 1 ms 1 January 1900 COBOL: FUNCTION CURRENT-DATE: 1 s 1 January 1601 Common Lisp (get-universal-time) 1 s 1 January 1900 Delphi date time: 1 ms (floating point) 1 January 1900 Delphi (Embarcadero Technologies) [22] System.SysUtils.Time [23] 1 ms 0/0/0000 0 ...

  3. Year 2038 problem - Wikipedia

    en.wikipedia.org/wiki/Year_2038_problem

    Version 3 supports unsigned 32-bit values as struct nfstime3 {uint32 seconds; uint32 nseconds;};. [25] Values greater than zero for the seconds field denote dates after the 0-hour, January 1, 1970. Values less than zero for the seconds field denote dates before the 0-hour, January 1, 1970. In both cases, the nseconds (nanoseconds) field is to ...

  4. Async/await - Wikipedia

    en.wikipedia.org/wiki/Async/await

    Instead, it will begin the download process using a non-blocking mechanism (such as a background thread), and immediately return an unresolved, unrejected Task<byte[]> to this function. With the await keyword attached to the Task , this function will immediately proceed to return a Task<int> to its caller, who may then continue on with other ...

  5. Epoch (computing) - Wikipedia

    en.wikipedia.org/wiki/Epoch_(computing)

    Software timekeeping systems vary widely in the resolution of time measurement; some systems may use time units as large as a day, while others may use nanoseconds.For example, for an epoch date of midnight UTC (00:00) on 1 January 1900, and a time unit of a second, the time of the midnight (24:00) between 1 January 1900 and 2 January 1900 is represented by the number 86400, the number of ...

  6. List of HTTP header fields - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_header_fields

    The date and time at which the message was originated (in "HTTP-date" format as defined by RFC 9110: HTTP Semantics, section 5.6.7 "Date/Time Formats"). Date: Tue, 15 Nov 1994 08:12:31 GMT: Permanent RFC 9110: Expect: Indicates that particular server behaviors are required by the client. Expect: 100-continue: Permanent RFC 9110: Forwarded

  7. Unix time - Wikipedia

    en.wikipedia.org/wiki/Unix_time

    The maximum value of a signed 32-bit integer is 2 31 − 1, and the minimum value is −2 31, making it impossible to represent dates before 13 December 1901 (at 20:45:52 UTC) or after 19 January 2038 (at 03:14:07 UTC). The early cutoff can have an impact on databases that are storing historical information; in some databases where 32-bit Unix ...

  8. Delta timing - Wikipedia

    en.wikipedia.org/wiki/Delta_timing

    Delta time or delta timing is a concept used amongst programmers in relation to hardware and network responsiveness. [1] In graphics programming, the term is usually used for variably updating scenery based on the elapsed time since the game last updated, [2] (i.e. the previous "frame") which will vary depending on the speed of the computer, and how much work needs to be done in the program at ...

  9. Object pool pattern - Wikipedia

    en.wikipedia.org/wiki/Object_pool_pattern

    namespace DesignPattern.Objectpool; // The PooledObject class is the type that is expensive or slow to instantiate, // or that has limited availability, so is to be held in the object pool. public class PooledObject {private DateTime _createdAt = DateTime.