How to display the local time according to the user's time zone using javascript + php

This article mainly introduces how to display the local time in javascript + php based on the user's time zone. It provides some reference for examples to analyze how javascript can obtain the client time zone and interact with php on the server, for more information about how to use javascript + php to display the local time according to the user's time zone, see the following example. Share it with you for your reference. The details are as follows:

The following code is used in cross-time zone applications. this is a piece of code previously written.

The server saves the relevant time configuration in the form of GMT. the client needs to display the time according to the customer's time zone to meet the customer's habits.

1. the JavaScript code is as follows:

Window. onload = function () {// TODO begin processes the login user's time zone // obtains the difference between the login user's time zone and the GMT time zone var exp = new Date (); var gmtHours =-(exp. getTimezoneOffset ()/60); setCookie ('customer _ timezone ', gmtHours, 1); // date = exp when determining whether the value is timeout. format ('yyyy-MM-dd HH: mm: SS'); if (inDaylightTime (date) {setCookie ('indaylighttime', 1, 1 );}} // Set Cookiefunction setCookie (c_name, value, expiredays) {var exdate = new Date () exdate. setDate (exdate. getDate () + Expiredays) document. cookie = c_name + "=" + escape (value) + (expiredays = null )? "": "; Expires =" + exdate. toGMTString ()} // determines whether the time is in the eastern hemisphere or the Western hemisphere function iseasteartime (newDate) {var dj = newDate. getGMTOffset (false); if (dj. indexOf ("-") =-1) {return true;} else {return false ;}// whether the function inDaylightTime (date) is used for callback) {var start = new Date (date. getTime (); start. setMonth (0); start. setDate (1); start. setHours (0); start. setMinutes (0); start. setSeconds (0); var middle = new Date (start. getTime (); middle. setMonth (6); // if the time difference between the year and the year is the same, if (middle. getTimezoneOffset ()-start. getTimezoneOffset () = 0) {return false;} var margin = 0; if (this. iseasteartime (date) {margin = middle. getTimezoneOffset ();} else {margin = start. getTimezoneOffset ();} if (date. getTimezoneOffset () = margin) {return true;} return false;} // DONE end

2. server-side php code:

// Function gmt_to_local ($ time = '', $ dst = FALSE) for converting GMT to local time within 24 hours {// Set Cookie in JavaScript, PHP value: if (isset ($ _ COOKIE ["customer_timezone"]) {$ timezone = $ _ COOKIE ["customer_timezone"] ;}else {$ timezone = 0 ;} if ($ time = '') {return now () ;}// time processing $ time + = $ timezone * 3600; // if (isset ($ _ COOKIE ["inDaylightTime"]) & $ _ COOKIE ["inDaylightTime"] = 1) {$ dst = TRUE ;} if ($ dst = TRUE) {$ time + = 3600;} return date ("H: I", $ time );}

I hope this article will help you with php programming.