I frequently find myself entering data an hour or more after the fact.

For items that have a precise timestamp, I find the time entry quite slow, and overly precise (ie. 5 minute intervals is fine).

Given the large number of items that have a timestamp attached, I think improving the time picker would be pretty high leverage change.

I especially like how the Apple Health Sleep alarm time works, you can choose any 5 minute interval on a 24 hour clock with a single tap, and even though there are many options on the dial, it feels really easy to quickly zero in on the right time. Image here: https://preview.redd.it/eiy9ippl8yg71.jpg?width=750&format=pjpg&auto=webp&s=5092bf42c0b6af889bdc258765d8d929e64daa03