App/uib/template/datepicker/day.html
<table class="uib-daypicker" role="grid" aria-labelledby="{{::uniqueId}}-title" aria-activedescendant="{{activeDateId}}">
<thead>
<tr>
<th><button type="button" class="btn btn-default btn-sm pull-left uib-left" ng-click="move(-1)" tabindex="-1"><i class="glyphicon glyphicon-chevron-left"></i></button></th>
<th colspan="{{::5 + showWeeks}}"><button id="{{::uniqueId}}-title" role="heading" aria-live="assertive" aria-atomic="true" type="button" class="btn btn-default btn-sm uib-title" ng-click="toggleMode()" ng-disabled="datepickerMode === maxMode" tabindex="-1"><strong>{{title}}</strong></button></th>
<th><button type="button" class="btn btn-default btn-sm pull-right uib-right" ng-click="move(1)" tabindex="-1"><i class="glyphicon glyphicon-chevron-right"></i></button></th>
</tr>
<tr>
<th ng-if="showWeeks" class="text-center"></th>
<th ng-repeat="label in ::labels track by $index" class="text-center"><small aria-label="{{::label.full}}">{{::label.abbr}}</small></th>
</tr>
</thead>
<tbody>
<tr class="uib-weeks" ng-repeat="row in rows track by $index">
<td ng-if="showWeeks" class="text-center h6"><em>{{ weekNumbers[$index] }}</em></td>
<td ng-repeat="dt in row" class="uib-day text-center" role="gridcell"
id="{{::dt.uid}}"
ng-class="::dt.customClass">
<button type="button" class="btn btn-default btn-sm"
uib-is-class="
'btn-info' for selectedDt,
'active' for activeDt
on dt"
ng-click="select(dt.date)"
ng-disabled="::dt.disabled"
tabindex="-1"><span ng-class="::{'text-muted': dt.secondary, 'text-info': dt.current}">{{::dt.label}}</span></button>
</td>
</tr>
</tbody>
</table>