What I think Dr Dan was asking....
Thats one part but I believe the word date
"date in a calendar is a reference to a particular day represented within a calendar system. The calendar date allows the specific day to be identified. The number of days between two dates may be calculated. For example, "19 January 2009" is ten days after "9 January 2009" in the Gregorian calendar. The date of a particular event depends on the time zone in which it is observed. For example the attack on Pearl Harbor took place on December 7, 1941, in Hawaii, but on December 8 according to Japanese time."
I believe the window should be noted as day
A day is defined as 86,400 seconds.
A day on the UTC time scale can include a negative or positive leap second, and can therefore have a length of 86,399 or 86,401 seconds.
The International Bureau of Weights and Measures (BIPM) currently defines a second as
… the duration of 9 192 631 770 periods of the radiation corresponding to the transition between two hyperfine `level`s of the ground state of the caesium 133 atom.2
This makes the SI-based day last exactly 794,243,384,928,000 of those periods.
In the 19th century it had also been suggested to make a decimal fraction (1⁄10,000 or 1⁄100,000) of an astronomic day the base unit of time. This was an afterglow of decimal time and calendar, which had been given up already.
both are web searched definitions
thx Dr Dan
