1. A specific period or moment within a 24-hour day, often referring to morning, afternoon, evening, or night
The best time to exercise depends on your preferred time of day.
O melhor horário do dia para se exercitar depende de sua preferência.
2. A designated or scheduled time during the day for a particular activity
What is the best time of day to call customer service?
Qual é o melhor horário do dia para ligar para o atendimento ao cliente?