punctual
US /ˈpʌŋk.tʃu.əl/
UK /ˈpʌŋk.tʃu.əl/

1.
准时的, 守时的
arriving or doing something at the agreed or correct time; not late.
:
•
She is always very punctual for appointments.
她赴约总是很准时。
•
The train arrived exactly on time, proving to be very punctual.
火车准时到达,证明它非常准时。