Wordnet 3.0
NOUN (1)
1. 
 the latest time for vacating a hotel room; 
- Example: "the checkout here is 12 noon"[syn: checkout, checkout time]
The Collaborative International Dictionary of English v.0.48:
checkout time \checkout time\ n.
   1. the latest time for vacating a hotel room without being
      charged for extra time; as, the checkout here is 12 noon.
   Syn: checkout.
        [WordNet 1.5]
WordNet (r) 3.0 (2006):
checkout time
    n 1: the latest time for vacating a hotel room; "the checkout
         here is 12 noon" [syn: checkout, checkout time]