I was expecting this plugin to behave like VS Code’s vscode-auto-timestamp, where even Time-stamp: populates with the current timestamp on save. It took me a long time to figure out that I needed to have something matching the Timestamp Formats—like Time-stamp: Jun 18 2019—in-between the Prefix and Suffix before it would update.

prefix ?d=?
suffix $
format YYYY-MM-DD_HH:mm:ss
@import "base/global-base.css?2017-05-07_22:06:11";

not work, please help from work

Automatic timestamp updates work great on my other files (including latex, shell scripts, and many others), but fail on any Markdown files. I have checked in my Atom Settings my Timestamp Prefix, Suffix, and Formats regexp and format strings, but still no automatic update when I save the Markdown. I have even copied over the lines from those others (so I know they work and have been routinely updated there) into my Markdown files, but still no updates when I save the Markdown file.

Line in a Markdown file (at the top, line 3):

by Danny Quah, May 2020 // Last edited: 2020.05.23.1232h -- Danny Quah

(timestamp won't update; same if I delete the part leading up to //).

But line in a TeX file (at the top, line 3):

% Last edited: 2020.05.23.1322h -- Danny Quah

updates fine every time.

Must be something obvious I'm missing, but blindspotting right now.