How to position the timestamp with tikzpicture but not change the position of texts?

I am using tikzpicture to put a timestamp in my article, and everthing seems to be good. However, once I compile the tikzpicture, the text would sink and I don’t expect that such a blank at the beginning. How can I fix it or using an alternative rather than tikzpicture?

Here is my code:

documentclass[a4paper]{article}
usepackage[long]{datetime}
usepackage{framed}
usepackage{float}
usepackage{tikz}
usetikzlibrary{graphs}
usetikzlibrary{positioning}
usepackage{setspace}

title{textbf{Title}}
author{textbf{Name:} Alan}
date{textbf{Date of Meeting:} formatdate{18}{2}{2021}}

begin{document}
maketitle
thispagestyle{fancy}

begin{tikzpicture}[remember picture, overlay]
    node[anchor=north east, inner sep=0.5cm] at (current page.north east)
    {fontsize{7}{7}selectfont Latest edited at currenttime  on today};
end{tikzpicture}

begin{framed}
    noindent
    textbf{ABC:} abcs.
end{framed}

section{11}

end{document}

You may see the spacing between the date and the frame is different because of the tikzpicture.

usepackage{etoolbox}
apptocmd{maketitle}{
 begin{tikzpicture}[remember picture, overlay]
 node[anchor=north east, inner sep=0.5cm] at (current page.north east)
 {fontsize{7}{7}selectfont Latest edited at currenttime  on today};
 end{tikzpicture}
}{}{}