The Tempest phone app shows time in 24h clock (it possibly gets this from the OS?), but the website doesn’t. Would be great to have that option available, as 24h clock will take up less space on the page, and it is less easy to confuse the time of day you are looking at.
If it was an option in your user profile, people who preferred the AM/PM thing could keep it that way.
There is already a page to choose units for a whole load of the readings
this would seem like a good place to choose and set time and date formats too?
I know it is a small thing compared to the great ideas on here, but it would make the website easier to use and understand…