Nodejs Date Convert toLocalTime()

Method Source Code

Date.prototype.toLocalTime = function() {
    const newDate = new Date(this.getTime()+this.getTimezoneOffset()*60*1000);
    let offset = this.getTimezoneOffset() / 60;
    const hours = this.getHours();

    if (this.dst()) offset--;

    newDate.setHours(hours - offset);/*from  w ww.  ja  va2 s  .c  o m*/

    return newDate;
};

Related

1. toFormat(format)

   Date.prototype.toFormat = function (format) {
     format = format.replace(/H/, this.getHours());
     format = format.replace(/m/, this.getMinutes());
     format = format.replace(/s/, this.getSeconds());
     return format;
   };
   

2. toISO8601()

   Date.prototype.toISO8601 = function() {
     function pad(n) {
       return n < 10 ? '0' + n : n;
     return this.getUTCFullYear() + '-' + pad(this.getUTCMonth() + 1) + '-' + pad(this.getUTCDate()) + 'T' + pad(this.getUTCHours())
      + ':' + pad(this.getUTCMinutes()) + ':' + pad(this.getUTCSeconds()) + 'Z';
   };
   

3. toISO8601()

   Date.prototype.toISO8601 = function() {    
       var s = [
             this.getFullYear()
           , Date.padZero(this.getMonth() + 1)
           , Date.padZero(this.getDate())
       ].join("-") + "T";
       s += this.getTimeString();
       s += this.getTimezoneOffsetString(true);
       return s;
   ...
   

4. toISO8601(key)

   Date.prototype.toISO8601 = function (key) {
       function f(n) {
           return n < 10 ? '0' + n : n;
       function f2(n) {
           if(n < 10)
             return '00' + n;
           return n < 100 ? '0' + n : n;
       return isFinite(this.valueOf()) ?
              this.getUTCFullYear()   + '-' +
            f(this.getUTCMonth() + 1) + '-' +
            f(this.getUTCDate())      + 'T' +
            f(this.getUTCHours())     + ':' +
            f(this.getUTCMinutes())   + ':' +
            f(this.getUTCSeconds())   + '.' +
            f2(this.getUTCMilliseconds()) + '-0000' : null;
   };
   

5. toInputFormat()

   Date.prototype.toInputFormat = function() {
      var yyyy = this.getFullYear().toString();
      var mm = (this.getMonth()+1).toString(); 
      var dd  = this.getDate().toString();
      return yyyy +'-'+ (mm[1]?mm:"0"+mm[0]) +'-'+ (dd[1]?dd:"0"+dd[0]); 
     };
   

6. toLocaleFormat(pattern)

   'use strict';
   Date.prototype.toLocaleFormat = Date.prototype.toLocaleFormat || function (pattern) {
           return pattern.replace(/%Y/g, this.getFullYear()).replace(/%m/g, (this.getMonth() + 1)).replace(/%d/g, this.getDate());
       };
   

7. toLocaleJSON()

   Date.prototype.toLocaleJSON = function() {
     var t = this,
       y = t.getFullYear(),
       M = t.getMonth() + 1,
       d = t.getDate(),
       h = t.getHours(),
       m = t.getMinutes(),
       s = t.getSeconds();
     return y + '/' + (M < 10 ? '0' + M : M) + '/' + (d < 10 ? '0' + d : d) + ' ' +
   ...
   

8. toLongintText()

   Date.prototype.toLongintText=function(){ 
     var m; 
     var d; 
     if(this.getMonth()<9){ 
     m="0"+(this.getMonth()+1); 
     }else{ 
     m=this.getMonth()+1; 
     if(this.getDate()<10){ 
   ...
   

9. toOADate()

   Date.prototype.toOADate = function ()
     var jsDate = this || new Date();
     var timezoneOffset = jsDate.getTimezoneOffset() / (60 * 24);
     var msDateObj = (jsDate.getTime() / 86400000) + (25569 - timezoneOffset);
     return msDateObj;