Bootstrap 3 DateTime picker from Eonasdan, https://github.com/Eonasdan/bootstrap-datetimepicker, packaged for Meteor.js
$ meteor add tsega:bootstrap3-datetimepicker
Set up your markup, in the example below a grouped calendar icon with text input (bootstrap3)
<template name="tempName">
...
<div class="input-group datetimepicker">
<span class="input-group-addon"><i class="glyphicon glyphicon-calendar"></i></span>
<input class="set-due-date form-control" type="text"/>
</div>
...
</template>
Using jQuery initiate the control as datetime picker after the template has been rendered.
Template.tempName.onRendered(function() {
this.$('.datetimepicker').datetimepicker();
});