Why unix timestamp

Unix time is a count of total seconds since a fixed time and date. This is purely for efficiency reasons. It takes a lot less space to store a single number representing seconds than it does to store separate values for the year, month, hour, etc.

But consider that Unix originated in the late s when available storage was far smaller. Timestamps are also used a lot, so their storage adds up. For example, every file has three timestamps associated with it.

But it still has some advantages over more readable alternatives such as Wed, 21 Oct GMT. You can order two Unix timestamps very easily, at a glance. This is particularly true for dates close together, such as on adjacent days. So, Unix time is a total count of seconds since a specific point in time.

But what is that point in time? This is often referred to as the Unix Epoch. Programmers chose this date for the epoch out of convenience since it was the closest round date when they invented Unix time. You may well have seen this date when something has gone wrong. The original data type was a bit integer, and this often remains the case, even in much more powerful systems. See also How do I open documents in Windows 10? What does Unix timestamp mean?

How do I print a timestamp in Unix? Why do we use Unix timestamp in ? How long is a Unix timestamp? See also Which of these are common responsibilities of systems administrators? Like this post? Add a comment.

Active Oldest Votes. What is a Unix Timestamp Simply put, the Unix timestamp is a way to track time as a running total of seconds. What is strtotime and how is it useful As the name suggests, strtotime function is used to convert a date string to a Unix timestamp str to time.

When should I use a timestamp A Unix timestamp is interpreted the same regardless of region and is calculated from the same point in time regardless of the time zone. Limitations of strtotime On a bit system, the maximum value of an integer is 2,,, Use DateTime objects If you're working with dates outside the 13 Dec to 19 Jan range, then consider using PHP's DateTime objects which can work with a much wider range of dates.

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Does ES6 make JavaScript frameworks obsolete? Universal Onboarding. Distribute Marketplace Onboarding. Solution Guide. Data Types. Buying Data. Selling Data. What is Unix time? Unix time is a system for representing a point in time.