白天 (bái tiān): 昼間; 日中; 昼

During the daytime, I study at school.

Daytime is warmer than nighttime.

He works during the day and rests at night.

The daytime here is very long.

He is very busy during the day; he is only free in the evening.

Summer days are long.

We work during the day and rest at night.

It is hot here during the day and cool at night.

He attends classes at school during the day.