One day of sidereal time; the time in which Earth rotates once around its axis, relative to the point of the vernal equinox (about 23 hours, 56 minutes, 4 seconds).
The rotational period of Earth; the time in which Earth rotates around its axis 360 degrees.
Any period of seven consecutive days.
A period of five days beginning with Monday.
A subdivision of the month into longer periods of work days punctuated by shorter weekend periods of days for markets, rest, or religious observation such as a sabbath.
A period of seven days beginning with Sunday or Monday.
Seven days after (sometimes before) a specified date.