I'm wondering if there is a conventional word or short phrase meaning "happening on the same day" -- similar to "at the same time" but implying same day without implying that the events are simultaneous.
For the sake of example, I'll use a placeholder I came up with, cosolar
- "X is [cosolar] with Y"
- "I missed my final exam because it was [cosolar] with major surgery."
Is there such a word?