Related Clues:

• Day in Rome that is short
• For execution, does not reveal fateful day
• Day in mid-month that is endless!
• Astronomical phenomenon largely affecting horse and bullock
• Time of equal day and night length
• Roman calendar day roughly in the middle of the month
• May 15, for example? Bet this happens!
• Disheartened, has nothing to do for a day in Rome
• Audre Lorde poem: a half-yearly occurence
• Beware the — of March
• September/March date
• Time of year horse lacks energy to mate with another animal
• Feature of spring, something shiny (not lead) and neat
• Biannual phenomenon affecting horse that's tailless, and castrated bull
• For Romans, a day that is short