The phrase "a later day" is correct and usable in written English.
It can be used to refer to a future time or occasion when something will happen or be addressed.
Example: "We can discuss this matter in more detail at a later day."
Alternatives: "another time" or "a future date".
Our research nurses were aware of this and were careful to return to patients who they were not able to recruit on day 1 to check whether they were able to consent on a later day (eg, when they were 2 days postop or if they were having a more lucid episode).
Real accountability waits for a later day.
A party to celebrate his life will be held at a later day.
You drink it up, take it away, and write about it at a later day.
At a later day, I still have the options of surgery or radiation".
The P2 increase occurred immediately, while in previous learning-by-listening studies P2 increases occurred on a later day.
Then he gradually adjusted his light, first to show the pathetically weak illumination of a coal-oil lamp that would have been used in the early days of the mines, and then to show the only marginally more intense beam of a later-day coal-miner's helmet lamp.
Egypt could face an Islamic revolution led by the Muslim Brotherhood, or a nationalist uprising led by a later-day Gamal Abdel Nasser.
As a molecule evolves, it follows one of many possible paths from its ancestral form to a later-day version.
However, a later-day, large-sample study conducted by Browning et al. [ 17] presented that ondansetron did not prevent PAS among women undergoing combined spinal and epidural anesthesia for cesarean delivery.
The players didn't return to the court until a day later — Monday afternoon, Paris time.
