filter that takes into account the day of departure and time

[SimRacer]

Good morning!

I ask for your help to create a filter that takes into account the day of departure and time!

In the form will state:

1. day (Monday to Sunday)

2. time (from 00:00 to 23:00 at an interval of 1 hour)

Time search is desired to produce a range of + / - 3 hours

Please help.

I add some html code into schedule_searchform.tpl:

<li><a href="#nearest"><span>By date and time</span></a></li>

and

<div id="nearest">
<p>Choose day:</p>
<select id="nearestday" name="nearestday">
<option value="">Выбрать</option>
<option value="nearestday0">Mon</option>
<option value="nearestday1">Tue</option>
<option value="nearestday2">Wed</option>
<option value="nearestday3">Thu</option>
<option value="nearestday4">Fri</option>
<option value="nearestday5">Sun</option>
<option value="nearestday6">Sut</option>
</select>
<p>Choose time:</p>
<select id="nearesttime" name="nearesttime">
<option value="nearesttime00">00:00</option>
<option value="nearesttime01">01:00</option>
<option value="nearesttime02">02:00</option>
<option value="nearesttime03">03:00</option>
<option value="nearesttime04">04:00</option>
<option value="nearesttime05">05:00</option>
<option value="nearesttime06">06:00</option>
<option value="nearesttime07">07:00</option>
<option value="nearesttime08">08:00</option>
<option value="nearesttime09">09:00</option>
<option value="nearesttime10">10:00</option>
<option value="nearesttime11">11:00</option>
<option value="nearesttime12">12:00</option>
<option value="nearesttime13">13:00</option>
<option value="nearesttime14">14:00</option>
<option value="nearesttime15">15:00</option>
<option value="nearesttime16">16:00</option>
<option value="nearesttime17">17:00</option>
<option value="nearesttime18">18:00</option>
<option value="nearesttime19">19:00</option>
<option value="nearesttime20">20:00</option>
<option value="nearesttime21">21:00</option>
<option value="nearesttime22">22:00</option>
<option value="nearesttime23">23:00</option>
</select>
<br><br>
<input type="submit" name="submit" value="Find" /></div>