Does the term "within 7 days" mean include the 7th day?
english.stackexchange.com
There's also the perennial question of whether the last day ends on the multiple of 24 hours from the time when the deadline was given, if it means midnight of that day, or closing time of that day, or what. And does "7 days" mean 7 calendar days, or 7 business days? Etc.
Precise meaning of "Last N days, weeks, months or years"
english.stackexchange.com
Today is Monday. Last week is strictly the period of seven days ending at midnight on Sunday and the last two weeks is strictly the period of fourteen days ending at midnight on Sunday. No one would refer to anything occurring today, yesterday or the day before as taking place last week or in the last two weeks. I wouldn't worry about it.
A word or phrase for "temporarily not working"
english.stackexchange.com
As a further note the phrase, " He's off today " certainly means they're not working today, but is ambiguous as to whether it is because they were not scheduled to work or are taking PTO.