Related Clues:

• It won't be 5 digits long for quite some time
• MIX or DIV
• Wine list datum
• The four seasons?
• Revolution period?
• 26 fortnights
• Desk-calendar capacity
• Info in a used car ad
• Calendar division
• 2000, e.g.
• Calendar cycle
• Set of computer instructions
• Subject dealing with the economy as a whole, briefly
• One of 57-Down, in English
• Lease term, often