Search results
Results From The WOW.Com Content Network
A timestamp is a sequence of characters or encoded information identifying when a certain event occurred, usually giving date and time of day. Learn about the origin, standardization and usage of timestamps in various contexts, such as computer files, digital cameras and blockchain.
Unix time measures time by the number of non-leap seconds since 1970-01-01 00:00:00 UTC, which is called the Unix epoch. It is widely used in computing, but differs from UTC and TAI in handling leap seconds.
Learn how timestamping is used in computing to provide a temporal order among events. Find out the applications of timestamping in network management, security, and concurrency control.
Learn about the process of securely keeping track of the creation and modification time of a document, using digital signatures and hash functions. Find out the history, classification, standards and applications of trusted timestamping schemes.
Coordinated Universal Time (UTC) is the primary time standard globally used to regulate clocks and time. It is based on atomic clocks and is not adjusted for daylight saving time. Learn about its history, uses, mechanism, and leap seconds.
An epoch is a fixed date and time used as a reference for measuring system time in computing. Learn about the different epochs used by various software and systems, the problems and solutions related to time representation and overflow, and the satellite-based time systems.
The timestamp is the signer's assertion that a piece of electronic data existed at or before a particular time. The protocol is defined in RFC 3161. One application of the protocol is to show that a digital signature was issued before a point in time, for example before the corresponding certificate was revoked.
System time is measured by a system clock, which is typically implemented as a count of the number of ticks since some arbitrary starting date, called the epoch. Learn how system time is converted into calendar time, how it differs from process time and file timestamps, and how it is implemented in various operating systems and programming languages.