punctual
adjective
[ ˈpʌŋ(k)tʃʊ(ə)l ]
• happening or doing something at the agreed or proper time.
• "he's the sort of man who's always punctual"
• denoting or relating to an action that takes place at a particular point in time.
Similar:
on time,
prompt,
to/on schedule,
in good time,
in time,
when expected,
timely,
well timed,
on the dot,
bang/spot on time,
Origin:
late 17th century: from medieval Latin punctualis, from Latin punctum ‘a point’.