time stamp

noun

plural time stamps or timestamps
1
: a stamping device used for recording the date and time of day on a document, envelope, etc. (as to indicate when it was received or sent out)
2
a
: an indication of the date and time stamped on a document, envelope, etc.
Problem was, a later check of the time stamp on the motion indicated that it had been filed nearly 40 minutes after Heinrich appeared before Wolf.—Thanassis Cambanis
b
: an indication of the date and time recorded as part of a digital signal or file (such as an email, digital photograph, radio broadcast, or text message) indicating the time of creation, transmission, etc.
When you share that viral video, it carries a time stamp.—Cosmopolitan
… highlighted a seeming discrepancy between the timestamps of the phone records and surveillance video, with the surveillance video suggesting the shooting happened a moment or two earlier than the phone records.—Patrick Kernan
time-stamp transitive verb
time-stamped; time-stamping; time-stamps
The repository also contains time-stamped versions of your code … —Jeff Jurvis

Examples of time stamp in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Ranch on the counter had no time stamp; time stamp was added. — Arkansas Online, 4 Sep. 2026 The days blend together with no time stamps, although Ullom occasionally reveals how many miles the car has gone. — Amy Nicholson, Los Angeles Times, 19 Aug. 2026 Workflows should preserve the sources, time stamps and version histories of datasets, images, text and emails. — Muhamad Aly Rifai, Forbes.com, 6 Aug. 2026 Some chicken and shrimp weren’t held at a safe temperature, and the sushi rice didn’t have a time stamp. — Harriet Ramos, Fort Worth Star-Telegram, 2 Aug. 2026 See All Example Sentences for time stamp

Word History

First Known Use

1855, in the meaning defined at sense 1

Time Traveler
The first known use of time stamp was in 1855

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Cite this Entry

“Time stamp.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/time%20stamp. Accessed 27 Sep. 2026.

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