Related Clues:

• Festive nights
• Some party nights
• 12/24 and 12/31
• Holiday preceders
• Backs of boats
• Rears, nautically
• Times to revel, maybe
• Some times to call, in ads
• Some times for celebrating
• Decem-ber 24 and 31
• Party nights
• When to call, in some ads
• Days before holidays
• 12/24 and 31
• Preceders of special days