23 · time
- 23A · allegory of Time and Eternity
- 23B · period of more than one year
- 23C · year, solar year
- 23D · seasons of the year (esp. personifications); 'Stagione', 'Le quattro stagione dell'anno' (Ripa)
- 23E · seasons of the year represented by scenes showing human activities, usually in a landscape
- 23F · seasons of the year represented by landscapes
- 23G · seasons of the year represented by still lifes of flowers and/or fruits
- 23H · seasons of the year represented by concepts other than personifications, human activities, landscapes, or still lifes of flowers and/or fruits (e.g. biblical scenes)
- 23I · the twelve months (especially personifications); 'Mese in generale' (Ripa)
- 23K · the twelve months represented by scenes showing human activities, usually in a landscape; so-called 'labours of the months'
- 23L · the twelve months represented by landscapes
- 23M · the twelve months represented by still lifes of flowers and/or fruits
- 23N · the twelve months of the year represented by concepts other than personifications, human activities, landscapes, or still lifes of flowers and/or fruits
- 23O · zodiac; the twelve zodiacal signs together
- 23P · weeks
- 23Q · days of the week
- 23R · day and night
- 23S · the empires of the world
- 23T · historical epochs
- 23U · chronology
