Assuming that you mean, in timely manner as opposed to in timely matter, the former means to do something in a reasonable about of time. For example, you could write in a letter for the respondent to reply to you in a timely manner, because you hope that they will reply to you soon.
Timely manner means - doing something in time. If I want people to work for me, I must pay their salaries in a timely manner
We say In a timely way.
He completed the assignment in a timely manner.
Account of what has taken place, and was not before known; news.
"regardless" has a meaning of "instead of' or "no matter where or what"
it is when u die
Doing something in a timely manner means within a suitable period. The phrase is not used as "timely matter."
The quality or state of being timely; seasonableness; opportuneness.
Promptly or as soon as possible may be used.
Nullify marriage?
No and there are spelling mistakes as well.
It's a way of expressing that something came at a time when it is actually needed.
matter that occupies space
We say In a timely way.
He completed the assignment in a timely manner.
Account of what has taken place, and was not before known; news.
To sleep
"regardless" has a meaning of "instead of' or "no matter where or what"