I created something for myself to use https://www.logbook.my

I can both back date and future date entries.

I keep a tag called "Daily Entries" with a timestamp on the day of what I use, I can automatically add a timestamp with the shortcut "CTRL + T"

Future dating allows me to plan ahead as well.

I write an entry about a future event (ie a meeting) and prefill some information. Then when the meeting happens, I just open up the entry and start entering.

I've been using Logbook since 1st May, and personally now have 1139 entries, and 576 tags.

I've been recording:

- Recipes - Meeting notes - Shower Thoughts - Career timeline - Car maintenance - "Best Practices" on a variety of subjects - Many more

I also use timestamps a lot, and have a preference for how they are formatted so I created https://timestamps.aizatto.com

I hope some of these may help people here