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. 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 UTC 2007-11-09 T 11:20 UTC Sat Jul 23 02:16:57 2005


The International Organization for Standardization (ISO) has defined ISO 8601 which standardizes timestamps.

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 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

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Look at other dictionaries:

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  • Timestamp — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Un timestamp est une séquence de caractère qui contient suffisamment d information, la plupart du temps une date et une heure, pour situer un événement… …   Wikipédia en Français

  • Timestamp — es una secuencia de caracteres, que denotan la hora y fecha (o alguna de ellas) en la cual ocurrió determinado evento. Esta información es comúnmente presentada en un formato consistente, lo que permite la fácil comparación entre dos diferentes… …   Wikipedia Español

  • Timestamp — Ein Zeitstempel (engl.: timestamp) ist ein Wert in einem definierten Format, der einem Ereignis (beispielsweise dem Senden oder Empfangen einer Nachricht, der Modifikation von Daten u. a.) einen Zeitpunkt zuordnet. Der Zweck eines Zeitstempels… …   Deutsch Wikipedia

  • timestamp — 1. noun /ˈtaɪmˌstæmp/ The date and time at which an event occurs or occurred, usually indicated in human readable form, especially when used in a log to track events. See Also: update 2. verb /ˈtaɪmˌstæmp/ To …   Wiktionary

  • Timestamp — Zeitmarke meist benutzt zur Synchronisation oder Identifikation; siehe 1.) …   Acronyms

  • Timestamp — Zeitmarke meist benutzt zur Synchronisation oder Identifikation; siehe 1.) …   Acronyms von A bis Z

  • timestamp — timeˈstamp noun A record of the time of an event or transaction, automatically created by and stored on a computer transitive verb (of a computer) to add a record of the time of an event or transaction to (data) • • • Main Entry: ↑time …   Useful english dictionary

  • Timestamp (informatique) — Timestamp désigne en informatique un compteur numérique servant de référence temporelle et représente le nombre de secondes écoulées depuis un instant de référence. Description C est un mot composé venant de l anglais « time » (heure)… …   Wikipédia en Français

  • Timestamp-based concurrency control — In computer science, in the field of databases, timestamp based concurrency control is a non lock concurrency control method, used in relational databases to safely handle transactions, using timestamps.OperationAssumptions* Every timestamp value …   Wikipedia

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