The sign you're referring to is "Time indications hours with restriction to weekdays" (1042-30). This sign indicates that there are specific time restrictions for certain regulations, such as parking or stopping, during weekdays.

Generally, the sign will display the weekdays (Monday to Friday) when the restriction is in effect, along with the specific hours. For example, if the sign states "8:00 - 18:00," it means the restriction applies from 8 AM to 6 PM on weekdays.

Outside of these specified hours and days, the regulations do not apply, and you are permitted to park or stop as per the other relevant traffic rules. It's important to pay attention to such signs to avoid fines or towing, especially in busy urban areas where parking can be limited. Always make sure to double-check the sign for the exact hours and days the restrictions are in place.