I have a work computer on Duplicati so I set its backup to run evenings after every work day.
The way Duplicati presents times as local but processes them only as UTC has led to the situation you see in the attached screenshot
Because my backup time is 20:02 in Eastern Time, and we are currently on -4 due to DST, you see that my days are knocked off by one. We backed up Thursday but will not back up again until Sunday. Because 20:02 Friday here is Saturday in UTC, and 20:02 Sunday here will be Monday in UTC.
I get that this seems like a small thing but the inconsistency, especially presenting local times but continuing to process as if UTC, can lead to real screw-ups.