Explanation of general signs

 except days of rest daily 
 on work-days
 with the exception of the last work-day of the weeks on work-days
 on the first work-days of the weeks
 on the last work-days of the weeks
 on free days
 on free days and days of rest 
 with the exception of the free days daily
 on days of rest
 on the day preceding the first work-day of the week
 on school-days
 during school holiday on work-days