How to convert 13 digit timestamp to standard timestamp in php

PHP is a very popular programming language that many people use to develop web applications and websites. When dealing with timestamps, you may need to convert the 13-digit timestamp to a standard timestamp. In this article, I will show you how to convert a 13-digit timestamp to a standard timestamp in PHP.

What is a timestamp?

A timestamp is a number used to represent date and time. In computer programming, a commonly used timestamp format is the Unix timestamp, which is an integer representing the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC. This integer can be easily converted to date and time for use in a variety of applications. Unix timestamps are often called standard timestamps because they are the most widely used timestamp format.

What is a 13-digit timestamp?

13-bit timestamp is the 13-bit version of Unix timestamp. It represents the number of milliseconds elapsed since January 1, 1970 00:00:00 UTC. For example, "1630362073034" is a 13-digit timestamp, indicating that the time is September 1, 2021 20:07:53.034.

Why do we need a 13-digit timestamp?

The 13-digit timestamp is typically used to record the detailed time of an event, such as a file modification timestamp on an operating system. The 13-bit timestamp provides more precise time information because it expresses time in milliseconds, which is much more precise than standard timestamps.

How to convert 13-digit timestamp to standard timestamp?

The following is a simple PHP function that converts a 13-digit timestamp to a standard timestamp:

function convert13bitTo10bit($timestamp) {
    $timestamp = $timestamp / 1000;
    return $timestamp;
}

This function divides a 13-digit timestamp by 1000, giving a 10 Bit standard timestamp. Now you can use the date() function to convert a standard timestamp to a date and time. The following is a sample code:

$timestamp = '1630362073034';
$standard_timestamp = convert13bitTo10bit($timestamp);
echo date("Y-m-d H:i:s", $standard_timestamp);

This code will output "2021-09-01 20:07:53", which means that the 13-digit timestamp "1630362073034" is equivalent to the standard timestamp "1630535273".

Conclusion

Now you know how to convert a 13-digit timestamp to a standard timestamp in PHP. This simple feature helps you easily handle timestamps while developing web applications and websites. Whether you use 13-bit timestamps or not, understanding these concepts and techniques will be very helpful for you to develop better applications.

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