朝になると

when morning comes

→ 朝
phrase Rare #38,593
when morning comes Describes something that happens regularly when it becomes morning or in the morning. になると means “when it becomes.”
JA: 朝になると、近所の猫が鳴き始めます。
EN: When morning comes, the neighborhood cats start meowing.

朝になると布団片づけます

In the morning, I put away the futon.

トム朝になるといつもここに居る

Tom is always here in the morning.

朝になると鳥が鳴く

Birds sing in the morning.