A timestamp is a sequence of characters, denoting the date and/or time at which a certain event occurred. This data is usually presented in a consistent format, allowing for easy comparison of two different records and tracking progress over time; the practice of recording timestamps in a consistent manner along with the actual data is called timestamping.

Timestamps are typically used for logging events, in which case each event in a log is marked with a timestamp. Data logging is the practice of recording sequential Data, often chronologically. In filesystems, timestamp may mean the stored date/time of creation or modification of a file.

Examples of timestamps:

2005-10-30 T 10:45 UTC2007-11-09 T 11:20 UTC Sat Jul 23 02:16:57 2005

Standardization

The International Organization for Standardization (ISO) has defined ISO 8601 which standardizes timestamps. ISO 8601 is an International standard for date and Time representations issued by the International Organization for Standardization (ISO

Other meanings

Timestamp can also refer to:

• A time code (in networking or video technology)
• Unix time, the number of seconds since 00:00:00 UTC on January 1, 1970
• ICMP Timestamp
• A digitally signed timestamp whose signer vouches for the existence of the signed document or content at the time given as part of the digital signature
• The modification or access time of a file or directory in a computer file system or database

Unix time, or POSIX time, is a system for describing points in Time, defined as the number of seconds elapsed since Midnight Coordinated Universal The Timestamp is an ICMP message which is used for time synchronization Trusted timestamping is the process of securely keeping track of the creation and modification time of a document A digital signature or digital signature scheme is a type of asymmetric cryptography used to simulate the security properties of a handwritten Signature In Computer science and Computer programming, system time represents a computer system's notion of the passing of Time. A computer file is a block of Arbitrary Information, or resource for storing information which is available to a Computer program and is usually In Computing, a directory, catalog, folder or drawer is an entity in a File system, which contains a group of files and/or other directories In Computing, a file system (often also written as filesystem) is a method for storing and organizing Computer files and the data they contain to make A Computer Database is a structured collection of records or data that is stored in a computer system

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