| title | clock Function (C) | Microsoft Docs | |
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| ms.date | 11/04/2016 | |
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| ms.topic | language-reference | |
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| ms.assetid | 4e66b721-850e-4e62-906a-72e42060c93d | |
| author | mikeblome | |
| ms.author | mblome | |
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ANSI 4.12.2.1 The era for the clock function
The clock function's era begins (with a value of 0) when the C program starts to execute. It returns times measured in 1/CLOCKS_PER_SEC (which equals 1/1000 for Microsoft C).