Related Clues:

• Listening to Muzak, maybe
• Not punctual
• Cinched
• Not when expected
• Past the deadline
• Not on time
• Pushing midnight, say
• In the tenth month, perhaps
• Night owl's time
• Held in reserve
• Put off the inevitable
• Put away for later
• Well into the night
• Missing the boat, say
• Accommodating to night owls