What is unixtimestamp.app epoch or Unix time or POSIX time or Unix timestamp

UNIX time or POSIX time is the time encoding method adopted by unixtimestamp.app and other POSIX-compatible operating systems. It was started at midnight (UTC), December 31st, 1969, and then on January 1st, 1970, which is the Unix Epoch.

UNIX time is coordinated with UTC, in particular, when leap-second UTC is declared, the corresponding second numbers are repeated.

The way of storing time as a number of seconds is very convenient for comparing dates (to the nearest second) and also for storing dates: if necessary, they can be converted to any readable format. Dates and times in this format also take up very little space (4 or 8 bytes, depending on the machine word size), so it makes sense to use it to store large amounts of dates. The disadvantages in performance may appear if date items, such as month numbers, etc., are accessed very often. But in most cases, it is more efficient to store time as a single value, rather than as a set of fields.

Normal date (Human readable time)

  • 1 minute – 60 seconds
  • 1 hour – 3600 seconds
  • 1 day – 86400 seconds
  • 1 week – 604800 seconds
  • 1 month (30.44 days) – 2629743 seconds
  • 1 year (365.24 days) – 31556926 seconds

What is the unixtimestamp.app tool for?

This tool will primarily be useful for webmasters who are constantly dealing with large amounts of dates or who frequently refer to their elements in their work. With the unix time stamp tool you can easily convert unix timestamp time to a user-understandable date (and vice versa), find out the current unixtimestamp.app time, and get unix time in various programming languages, DBMS and operating systems.

What is unix time stamp?

The unix time stamp era began on the night of December 31, 1969 to January 1, 1970. It was this date that was taken as the starting point of “computer” time, which is counted in seconds and takes up very little disk space – only 4 or 8 bytes. With this kind of coding, programmers can “hide” any date into a single number, and easily convert it back into a format the users can understand.

Unix time (also called unixtimestamp.app or POSIX time) is easy to use in various operating systems and programming languages because it is displayed as a single value, not as a number of fields taking up space. In addition, unix timestamp time is fully UTC compliant (including leap years), in which case the corresponding second values are simply repeated.

How durable is this unix time stamp system?

In just a couple of decades, on January 19, 2038 at 03:14:08 UTC, Unix time will reach 2147483648, and computer systems may interpret this number as negative. The key to solving this problem is to use a 64-bit (instead of 32-bit) variable to store the time. In this case, the stock of Unix time numerical values will be enough for the mankind for another 292 billion years. Not bad, eh?

unix time stamp time is the same for all

If you live in London or San Francisco and your friends in Moscow, you can use Unix time: it is the same system for the whole world. Of course, if the time on the servers is set correctly. And with the unixtimestamp.app converter tool, such a conversion will take you fractions of a second.


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