No. All they mean is that a “day” is how long it takes for the planet to spin around one time. On Earth the day is 24 hours. But other planets might spin faster or slower, so the day could be shorter than 24 hours, or it could be much longer. On a planet with, say, a 10-hour day, you would see the sun rise, set, and then rise again, after only 10 hours, whereas here it takes 24.
And then some planets the *year* is longer or shorter than our year, which happens to be 8,766 hours. This is less important. A “year” isn’t something you’d really notice, unless it results in the planet having seasons. A year is just how long it takes for the planet to make one full rotation around the sun, which you would never notice unless you spend a *lot* of time looking at the sky. Some planets are closer to their sun and/or moving faster, so their year is shorter. Some planets are farther away from their sun and/or moving slower, so their year is longer.
None of this would have any effect on your subjective feeling of time. An hour would still feel like an hour to you, no matter where you are.
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