Adverb
In a punctual manner; promptly; exactly.
Source: Webster's dictionaryshe always arrives on time Source: Internet
‘When I would write back to him, he would punctually reply, usually on the same day that he received my letter.’ Source: Internet
While invoicing is not a fun task, it’s a necessary one: by keeping clients informed of your expectations, you will get paid punctually and reinforce your professionalism. Source: Internet