Nodejs Time Calculate getPrettyTime()

Method Source Code

/**//from w w w  .  jav a  2 s.co  m
 * Provides a "pretty" time-only format to the Date object.
 *
 * Like: 7:12 PM
 */
Date.prototype.getPrettyTime = function () {
   var minutes = (this.getMinutes() < 10) ? "0" + this.getMinutes() : this.getMinutes();
   var hours = this.getHours();
   var ampm = "AM";

  if (hours > 12) {
      ampm = "PM";
      hours -= 12;
   } else if (hours == 12) {
     ampm = "PM";
   } else if (hours == 0) {
      hours = "12";
   }

   return hours + ":" + minutes + " " + ampm;
};

Related

1. getDigitalTime()

   Date.prototype.getDigitalTime = function(){  
     if  (this.getHours() > 12){
       var hour = this.getHours() - 12;
       var ampm = "PM";
     }else{
       var hour = this.getHours();
       var ampm = "AM";
     if (this.getMinutes() < 10)
   ...
   

2. getFormatTime()

   Date.prototype.getFormatTime = function (){
     var date = '';
     date += this.getFullYear() < 10 ? '0' + this.getFullYear() +'-' : this.getFullYear() +'-' ;
     date += this.getMonth() + 1 < 10 ? '0' + (this.getMonth() + 1) +'-' : (this.getMonth() + 1) + '-';
     date += this.getDate()< 10 ? '0' + (this.getDate()) : this.getDate() + ' ';
     date += this.getHours()< 10 ? '0' + (this.getHours()) +'-' : this.getHours() + ':';
     date += this.getMinutes() < 10 ? '0' + (this.getMinutes()) +'-' : this.getMinutes() + ':';
     date += this.getSeconds() < 10 ? '0' + (this.getSeconds()) : this.getSeconds();
     return date;
   ...
   

3. getFullDateTime()

   Date.prototype.getFullDateTime = function() {
       return this.getFullYear()+'-'+this.getMonthFormatted()+'-'+this.getDayFormatted()+' '+this.getHoursFormatted()+':'+this.getMinutesFormatted()+':'+this.getSecondsFormatted();
   

4. getNumberTime()

   Date.prototype.getNumberTime = function() {
     var hour = this.getHours();  
     if (this.getMinutes().length == 1)
       var min = "0" + this.getMinutes();
     else{var min = this.getMinutes();}
     var secs = this.getSeconds();  
     return hour +":"+ min +":"+ secs;
   

5. getPrettyDateTime()

   Date.prototype.getPrettyDateTime = function () {
     var month = this.getMonth() + 1;
     var day = (this.getDate() < 10) ? "0" + this.getDate() : this.getDate();
     return month + "/" + day + "/" + this.getFullYear() + " " + this.getPrettyTime();
   };
   

6. getTimeAmPm()

   Date.prototype.getTimeAmPm = function () {
     let hours = this.getHours();
     let minutes = this.getMinutes();
     let ampm = hours >= 12 ? 'pm' : 'am';
     hours = hours % 12;
     hours = hours ? hours : 12; 
     minutes = minutes < 10 ? '0' + minutes : minutes;
     let strTime = hours + ':' + minutes + '' + ampm;
     return strTime;
   ...
   

7. getTimeShift()

   Date.prototype.getTimeShift = function() {
       return this.getTimezoneOffset() < this.stdTimezoneOffset()?3:2;
   };
   

8. getUnixTime()

   getQueryString = function (field, url) {
       var href = url || window.location.href;
       var reg = new RegExp('[?&]' + field + '=([^&#]*)', 'i');
       var string = reg.exec(href);
       return string ? string[1] : null;
   };
   Date.prototype.getUnixTime = function () {
       return this.getTime() / 1000 | 0
   };
   ...
   

9. halfHoursUntil(otherTime)

   Date.prototype.halfHoursUntil = function(otherTime) {
     var hour = new Date(this);
     var numberOfHalfHours = 0;
     while (hour < otherTime) {
       numberOfHalfHours++;
       hour.addHalfHour();
     return numberOfHalfHours;
   };
   ...