Nodejs Date Convert toOADate()

Method Source Code

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

Related

1. 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]); 
     };
   

2. toLocalTime()

   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);
       return newDate;
   };
   

3. 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());
       };
   

4. 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) + ' ' +
   ...
   

5. 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){ 
   ...
   

6. toRFC2822()

   Date.prototype.toRFC2822 = function() {    
       return [
             Date.DAYS[this.getDay()] + ","
           , Date.padZero(this.getDate())
           , Date.MONTHS[this.getMonth()]
           , this.getFullYear()
           , this.getTimeString()
           , this.getTimezoneOffsetString()
       ].join(" ");
   ...
   

7. toRFC3339()

   Date.prototype.toRFC3339 = function()
     var year = this.getFullYear();
     var month = this.getMonth()+1;  
     var date = this.getDate();
     var hours = this.getHours();
     var mins = this.getMinutes();
     var secs = this.getSeconds();
     return (year+'-'+month+'-'+date+' '+hours+':'+mins+':'+secs);
   ...
   

8. toRails(name)

   Date.prototype.toRails = function(name) {
      var dateParams;
      dateParams = {};
      dateParams[name + "(1i)"] = this.getFullYear();
      dateParams[name + "(2i)"] = this.getMonth() + 1;
      dateParams[name + "(3i)"] = this.getDate();
      dateParams[name + "(4i)"] = this.getHours();
      dateParams[name + "(5i)"] = this.getMinutes();
      return dateParams;
   ...
   

9. toReadableTime()

   Date.prototype.toReadableTime = function() {
     if(this.getHours()>0) {
       return this.getHours()+"h "+this.getMinutes()+" min"
     } else {
       return this.getMinutes()+" min"