Beginner help with login validation

<div class="container">
<form class="well">
<h2>Employee Attendance</h2></form></div>

<div class="container">
<form class="well">
<div>
<br><br>
<b>EMPID:</b> <input ng-model="login.empid" name="emp"/>
<br/><br>
<b>Current Date: </b><span id="demo"></span><br>

<script>
var d = new Date();
document.getElementById("demo").innerHTML = d.toDateString();
</script>-

<br>
<b>Current time is:</b>   <span my-current-time="format"></span>
<br>
<br>
<br>
<button class="btn btn-warning" ng-click="checkIn()" required>CheckIn</button>
<button class="btn btn-success" ng-click="checkOut()">CheckOut</button>
<button class="btn btn-primary" ng-click="clear()">Clear</button>
</div>

</form>
</div>