<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script> <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="container"> <div class="row"> <h2>Create your snippet's HTML, CSS and Javascript in the editor tabs</h2> <div class="form-group row"> <div class="col-xs-10"> <input type="text" class="form-control input-lg" value="04.11.2025 02:52:08" id="tarihInput" placeholder="input text here.."> </div> <div class="col-xs-2"> <button class="btn btn-danger btn-lg btn-block" id="dugme">Clear</button> </div> </div> <br><br> <div id="sonuc" class="well">.</div> </div> </div>

$(document).ready(function() { function toNegativeTimestamp(tarihString) { // tarihString = "04.11.2025 02:52:08" // Gün.Ay.Yıl Saat:Dakika:Saniye şeklinde ayır let [datePart, timePart] = tarihString.split(" "); let [gun, ay, yil] = datePart.split("."); let [saat, dakika, saniye] = timePart.split(":"); // JS tarih objesi (Ay 0'dan başlar!) let dateObj = new Date(yil, ay - 1, gun, saat, dakika, saniye); // Unix Timestamp (saniye cinsinden) let ts = Math.floor(dateObj.getTime() / 1000); // Negatif timestamp return ts * -1; } $("#dugme").click(function() { let girdi = $("#tarihInput").val(); // input: 04.11.2025 02:52:08 let negatif = toNegativeTimestamp(girdi); $("#sonuc").text("Negatif Timestamp: " + negatif); }); });