input [type = time] datalist
<form action="../../form-result.php" method="post" target="_blank">
<p>
Choose the limit time: <input type="time" name="limittime" list="limittimeslist" step="0.001">
<input type="submit" value="Send data">
</p>
</form>
<datalist id="limittimeslist">
<option value="06:40">
<option value="08:24">
<option value="12:31:30">
<option value="23:59:59.999">
</datalist>
YouSseF Baaziz