Need some fields description from CustRequest entity

[Ashish Vijaywargiya]

Hello,

Can anybody of you tell me the purpose of the following two fields from
"CustRequest" entity ?

      <field name="openDateTime" type="date-time"></field>
      <field name="closedDateTime" type="date-time"></field>

-- 
Ashish Vijaywargiya
Indore (M.P), India
http://en.wikipedia.org/wiki/Indore