The traffic sign "Time indications hours limited to weekdays 1042-34" indicates that certain parking restrictions are in effect only on specified weekdays during certain hours. This sign typically shows specific days of the week, such as Monday to Friday, and outlines the times when parking is not allowed or is restricted.

For example, if the sign states that parking is prohibited from 8 AM to 5 PM on weekdays, it means that you can park freely outside of these hours and on weekends. Drivers must be aware of these time limits to avoid fines or penalties.

It's important always to read the sign carefully and comply with the indicated hours and days to ensure that you adhere to the local traffic regulations effectively.