How to Convert 12 Hour AM/PM Time to 24 Hours Time Format JavaScript
| <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>JavaScript Convert AM/PM to 24 Hours Time</title> <script type="text/javascript"> function Converttimeformat() { // var time = $("#starttime").val(); var time = document.getElementById('txttime').value; var hrs = Number(time.match(/^(\d+)/)[1]); var mnts = Number(time.match(/:(\d+)/)[1]); var format = time.match(/\s(.*)$/)[1]; if (format == "PM" && hrs < 12) hrs = hrs + 12; if (format == "AM" && hrs == 12) hrs = hrs - 12; var hours = hrs.toString(); var minutes = mnts.toString(); if (hrs < 10) hours = "0" + hours; if (mnts < 10) minutes = "0" + minutes; alert(hours + ":" + minutes); } </script> </head> <body> <div> <table> <tr> <td><b>Enter Time:</b></td> <td><input type="text" id="txttime" value="10:00 PM" /></td> </tr> <tr> <td></td> <td><input type="button" id="btnConvert" value="Convert to AM/PM" onclick="Converttimeformat()" /></td> </tr> </table> </div> </body> </html> |
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