Here is an insight. The day-for-day format has a magical element to it which, ironically, is also an element of Romeo and Juliet that I just read about (from Bright Hub Education):
The Passage of Time
Poets and lovers contend that time passes differently for those who are in love. Shakespeare's play about literature's most famous lovers compresses events that seem to last years into four days. Is Shakespeare showing us how differently time is measured for lovers? I'll let you decide (with a little help).
- Day 1 - The morning begins with a Capulet/Montague brawl. The Capulet invitation is received in the afternoon. Romeo mets Juliet and falls in love in the evening.
- Day 2 - Day 2 begins with the balcony scene followed by Romeo's visit to Friar Lawrence. The two are married in the afternoon, soon followed by Romeo killing Tybalt and being banished. Romeo spends the night with Juliet and Lord Capulet decides Juliet will marry Paris.
- Day 3 - Romeo leaves at dawn. Juliet is informed of her impending marriage to Paris. Juliet runs to Friar lawrence for advice. Juliet drinks the potion that night.
- Day 4 - Wedding preparations last throughout the morning. Juliet is found dead. Romeo hears the news and buys poison from an apothecary. At night, Romeo kills Paris at Juliet's tomb and drinks poison. Juliet awakes and stabs herself.
- Day 5 - The Montagues and Capulets learn of the secret marriage, the double suicide, and end.