JavaScript DHTML/Date Time/Date Calculation

Материал из Web эксперт
Перейти к: навигация, поиск

Append date to string

   <source lang="html4strict">

<html> <head> <title></title> <script type="text/javascript"> 

  var dt = Date();
  var msg = "Today is " + dt;
  document.write(msg);

</script> </head> <body> </body> </html> 


 </source>


Calculate the days between two dates

   <source lang="html4strict">

<html> <head> 

   <title>the date</title>

</head> <body>

 

   <script type = "text/javascript">
   var today = new Date();
   var then = new Date();
   then.setFullYear(3000,1,1);
   
   var diff = then.getTime() - today.getTime();
   
   diff = Math.floor(diff / (1000 * 60 * 60 * 24));
   
   var dateLoc = document.getElementById("dateField");
   
   dateLoc.innerHTML = diff + " days";
   </script>

</body> </html> 


 </source>


Date Object Calculations

   <source lang="html4strict">

<html> <head> <title>Date Calculation</title> <script type="text/javascript"> function nextWeek() { 

   var todayInMS = today.getTime(); 
   var nextWeekInMS = todayInMS + (60 * 60 * 24 * 7 * 1000); 
   return new Date(nextWeekInMS);

} </script> </head> <body> Today is: <script type="text/javascript"> 

   var today = new Date(); 
   document.write(today);

</script>
Next week will be: <script type="text/javascript"> 

   document.write(nextWeek());

</script> </body> </html> 


 </source>


Get your timezone

   <source lang="html4strict">

<html> <head>

</head> <body> <script type="text/javascript"> 

 var today = new Date();
 offset = (today.getTimezoneOffset() / 60) + 1;
 if (offset == 5) {
   alert("You are in the Eastern Timezone");
 }

</script> </body> </html> 


 </source>


Putting a Time Stamp on a Page

   <source lang="html4strict">

<html> <head> <title>Time Stamper</title> </head> <body> <script type="text/javascript"> update = new Date(document.lastModified); theMonth = update.getMonth() + 1; theDate = update.getDate(); theYear = update.getFullYear(); document.writeln("Last updated:" + theMonth + "/" + theDate + "/" + theYear + "<\/I>"); </script> </body> </html> 


 </source>
Источник — «http://www.wbex.ru/index.php?title=JavaScript_DHTML/Date_Time/Date_Calculation&oldid=1765»