I am up early this morning. It is Saturday in the first week of September.
"The Bible clearly makes the Sabbath the last day of the week, but does not share how that corresponds to our 7 day week. Yet through extra-biblical sources it is possible to determine that the Sabbath at the time of Christ corresponds to our current ‘Saturday.’ Therefore it is common Jewish and Christian practice to regard Sunday as the first day of the week (as is also evident from the Portuguese names for the week days). However, the fact that, for example, Russian uses the name "second" for Tuesday, indicates that some nations regard Monday as the first day.
In international standard ISO-8601 the International Organization for Standardization (ISO) has decreed that Monday shall be the first day of the week."
I will assume that Sunday marks the end of the week. So that give us two days to rest, "Not Play" Playing is part of the work week; life has made play and work separate, they both require a lot of ability, coordination, strength and stamina so lets not separate play and work week.
School is also work as is Sunday School; bring that up at church and let them explain to you why you are working on Sunday a day of rest.
Definition of WORK
: activity in which one exerts strength or faculties to do or perform something
: sustained physical or mental effort to overcome obstacles and achieve an objective or result