Related Clues:

• Twelve, maybe
• Short snooze
• Whistle hour
• Time for shops to close
• Zenith, metaphorically
• Z's in Zaragoza
• A few Z's in Zaragoza
• Afternoon nap
• A time when hands are joined?
• Lunch hour, maybe
• When both hands are up
• Whistle time
• High time?
• Sleepy time down South?
• Forty winks