To be punctual — to act at or arrive by the agreed time and not be late; an important courtesy in business and daily life.
ビジネスでは時間を守ることが信頼につながる。
In business, being punctual leads to trust.
面接には時間を守って行ってください。10分前到着が望ましいです。
Please be punctual for the interview. It's best to arrive 10 minutes early.
友達との約束でも時間を守ることは大切だ。
It's important to keep time even for appointments with friends.