Case:1
The image below shows two signages, the first one is in French and translates to 'Wait for arrow to turn left' and the second one is a no_u_turn. In such cases, we ignore the the first signage and go ahead mapping no_u_turn.
Case:2
In the below image, the first board for no_left_turn says Monday to Friday 8am-10am and 3pm-7pm (Lun-Ven 8h-10h,15h-19h in French). The second board is a no_u_turn except authorized vehicles. In this case, first one would be a conditional turn restriction; second, an absolute no_u_turn turn restriction.
Case:3
The below image indicates that all the drivers (no matter the lane they are on) must follow this/these direction(s) at the intersection. This means that the driver needs to only turn right/left on the days mentioned in the sign and during that duration of the day.
Syntax to be used: restriction:conditional=only_right_turn @ (Mo-Fr 07:00-09:00,16:00-18:00)