我正在尝试使用angularjs来验证时间字段。如何按当前时间验证下拉字段？在select选项中，我给出了min = {{currentdate | “HH：MM :: SS”}}。但是没有验证，下面是我的代码
HTML PAGE：
<h6 class="text-left">Time<span class="error"> *</span></h6>
<select class='Select-button' name='time' id='time' ng-model='saverem.time' type='text' placeholder="Select Time" required min="08:00:00" >
<option value="">Select</option>
<option value="08:00:00">08:00 AM</option>
<option value="08:15:00">08:15 AM</option>
<option value="08:30:00">08:30 AM</option>
<option value="08:45:00">08:45 AM</option>
<option value="09:00:00">09:00 AM</option>
<option value="09:15:00">09:15 AM</option>
<option value="09:30:00">09:30 AM</option>
<option value="09:45:00">09:45 AM</option>
<option value="10:00:00">10:00 AM</option>
<option value="10:15:00">10:15 AM</option>
<option value="10:30:00">10:30 AM</option>
<option value="10:45:00">10:45 AM</option>
<option value="11:00:00">11:00 AM</option>
<option value="11:15:00">11:15 AM</option>
<option value="11:30:00">11:30 AM</option>
<option value="11:45:00">11:45 AM</option>
<option value="12:00:00">12:00 PM</option>
<option value="12:15:00">12:15 PM</option>
<option value="12:30:00">12:30 PM</option>
<option value="12:45:00">12:45 PM</option>
<option value="13:00:00">01:00 PM</option>
<option value="13:15:00">01:15 PM</option>
<option value="13:30:00">01:30 PM</option>
<option value="13:45:00">01:45 PM</option>
<option value="14:00:00">02:00 PM</option>
<option value="14:15:00">02:15 PM</option>
<option value="14:30:00">02:30 PM</option>
<option value="14:45:00">02:45 PM</option>
<option value="15:00:00">03:00 PM</option>
<option value="15:15:00">03:15 PM</option>
<option value="15:30:00">03:30 PM</option>
<option value="15:45:00">03:45 PM</option>
<option value="16:00:00">04:00 PM</option>
<option value="16:15:00">04:15 PM</option>
<option value="16:30:00">04:30 PM</option>
<option value="16:45:00">04:45 PM</option>
<option value="17:00:00">05:00 PM</option>
<option value="17:15:00">05:15 PM</option>
<option value="17:30:00">05:30 PM</option>
<option value="17:45:00">05:45 PM</option>
<option value="18:00:00">06:00 PM</option>
<option value="18:15:00">06:15 PM</option>
<option value="18:30:00">06:30 PM</option>
<option value="18:45:00">06:45 PM</option>
<option value="19:00:00">07:00 PM</option>
<option value="19:15:00">07:15 PM</option>
<option value="19:30:00">07:30 PM</option>
<option value="19:45:00">07:45 PM</option>
<option value="20:00:00">08:00 PM</option>
<option value="20:15:00">08:15 PM</option>
<option value="20:30:00">08:30 PM</option>
<option value="20:45:00">08:45 PM</option>
<option value="21:00:00">09:00 PM</option>
<option value="21:15:00">09:15 PM</option>
<option value="21:30:00">09:30 PM</option>
<option value="21:45:00">09:45 PM</option>
<option value="22:00:00">10:00 PM</option>
<option value="22:15:00">10:15 PM</option>
<option value="22:30:00">10:30 PM</option>
<option value="22:45:00">10:45 PM</option>
<option value="23:00:00">11:00 PM</option>
<option value="23:15:00">11:15 PM</option>
<option value="23:30:00">11:30 PM</option>
<option value="23:45:00">11:45 PM</option>
<option value="00:00:00">12:00 AM</option>
<option value="00:15:00">12:15 AM</option>
<option value="00:30:00">12:30 AM</option>
<option value="00:45:00">12:45 AM</option>
<option value="01:00:00">01:00 AM</option>
<option value="01:15:00">01:15 AM</option>
<option value="01:30:00">01:30 AM</option>
<option value="01:45:00">01:45 AM</option>
<option value="02:00:00">02:00 AM</option>
<option value="02:15:00">02:15 AM</option>
<option value="02:30:00">02:30 AM</option>
<option value="02:45:00">02:45 AM</option>
<option value="03:00:00">03:00 AM</option>
<option value="03:15:00">03:15 AM</option>
<option value="03:30:00">03:30 AM</option>
<option value="03:45:00">03:45 AM</option>
<option value="04:00:00">04:00 AM</option>
<option value="04:15:00">04:15 AM</option>
<option value="04:30:00">04:30 AM</option>
<option value="04:45:00">04:45 AM</option>
<option value="05:00:00">05:00 AM</option>
<option value="05:15:00">05:15 AM</option>
<option value="05:30:00">05:30 AM</option>
<option value="05:45:00">05:45 AM</option>
<option value="06:00:00">06:00 AM</option>
<option value="06:15:00">06:15 AM</option>
<option value="06:30:00">06:30 AM</option>
<option value="06:45:00">06:45 AM</option>
<option value="07:00:00">07:00 AM</option>
<option value="07:15:00">07:15 AM</option>
<option value="07:30:00">07:30 AM</option>
<option value="07:45:00">07:45 AM</option>
</select>
<span class='error' ng-show="remform.remtime.$dirty && remform.remtime.$invalid">
<span ng-show="remform.remtime.$error.required">Select time</span>
<span ng-show="remform.remtime.$error.min">Time cannot be older than the current date and time</span>
</span>
<button id="addreminder" type="submit" class="button button-block maple-button"
ng-click="addreminder()"
ng-disabled="((remform.time.$dirty && remform.remtime.$invalid)|| (remform.time.$pristine && remform.remtime.$invalid))"> Submit </button>
JS CONTROLLER：
$scope.currentDate = new Date();