Include component inside another compment

Hi All,

   Can we include a component inside another component.

For eg:

Custom_Component_A : 

<#assign currentDate = .now />
<span class="loggedtime"><Br/>Time Now : ${currentDate }</span>

Custom_Component_B: 

<#assign user_id = user.id>
<span class="loggedtime"><Br/>Hi : ${user_id}</span>
<component id="Custom_Component_A"/>

Can we include Custom_Component_A inside Custom_Component_B.

Thank you in advance for your time and assistance! 

Thanks,

   DVB