EPOCH TIME CONVERTER HOW TO
EPOCH TIME CONVERTER CODE

You don't have to brute force the effort.) Years between our target and the 1970 starting point. Years that are evenly divisible by 100 are not leap years, unless they are also evenly divisible by 400, in whichĬase they are leap years, bringing the total number of days in that year to 366. Like me, you may have had it explained to you that roughly every four years can be a leap year.with some caveats.Īctually, (as a helpful individual has pointed out to me) the real rule is as follows: Now the first relatively difficult issue-dealing with leap years. Years multiplied by 365 days in each of those years. And, we'll say it's 08:30 in the morning just to add some spice to this effort. You could do a rough calculation as follows:įor kicks and giggles let's use for our example a day that many folks will recognize, Scope-rather my effort to explain will be conceptual. Keep in mind that an accurate description of what the JavaScript Date Object methods are doing isn't in (or you just enjoy mental gymnastics-good for you, btw), I'll take a stab at explaining a process if you have a human-friendly date/time that you want to convert but you are, shall we say 'tool Tools are all well and good, but I like pain, how do you do this manually? Here's a really simple example doing this. Keep in mind that the JavaScript Date object will get it's time from your computer's clock. In seconds, you then want to divide the return value by 1000 to change milliseconds into seconds.

Of milliseconds elapsed, in your computer's timezone, since GMT. Method of the JavaScript Date object and divide the return value by 1000.

EPOCH TIME CONVERTER CODE

) But, since this topic isn't specifically a programming concern, I'll take a stabĪt explaining what the code does in english (or as near to it as I can manage, apologies to my teachers in advance).įirst off, the easiest way to get the current time in epoch (using JavaScript), is to call getTime() It's worth viewing the source code here to understand.

EPOCH TIME CONVERTER HOW TO

I've had many questions about how to do the conversion. Programming logic with it by converting a human-readable date format into its equivalent in epoch. If interested in more info, I defer to this article about epoch definition.Įpoch is useful in computer programming because we can use it to compare dates mathematically which helps us write Roughly speaking, epoch is the time in seconds that have elapsed since computers started counting.įor our purposes we'll call that 0 hours, 0 minutes, 0 seconds starting from January 1, 1970. Mostly as an interesting aside (something from a past use case which serves as a Over VBScript, Flash/Actionscript, even client-side PerlScript (*sigh*).Įven modern competitors such as Typescript must be compiled to Javascript to run on most browsers. Why JavaScript? It's arguably the de facto standard for client-side scripting on the web, winning out This section shows the output of two client-side scripting languages: JavaScript and PerlScript. Before this moment millions of applications will need to either adopt a new convention for time stamps or be migrated to 64-bit systems which will buy the time stamp a 'bit' more time.(Sorry, it doesn't appear that you have PerlScript installed.) On this date the Unix Time Stamp will cease to work due to a 32-bit overflow. This is very useful to computer systems for tracking and sorting dated information in dynamic and distributed applications both online and client side.

It should also be pointed out (thanks to the comments from visitors to this site) that this point in time technically does not change no matter where you are located on the globe. Therefore, the unix time stamp is merely the number of seconds between a particular date and the Unix Epoch. This count starts at the Unix Epoch on January 1st, 1970 at UTC. The unix time stamp is a way to track time as a running total of seconds.

Epoch time converter