Related Clues:
- Bedtime hr. after a late date, perhaps
- Last-call time, maybe
- Two bells, on the middle watch
- Graveyard shift hour
- Two bells, at sea
- TV news hour
- Sixty past midnight
- Longtime 'ER' slot
- Common time for 38-Across
- What the ringing of two bells might signal on a ship
- Two bells, to bosuns
- Wee hr
- 2200 hours
- Third shift hr
- When 'SNL' is over in NYC