The sign "Time indications in hours without restriction to weekdays" indicates that the restrictions or regulations it denotes apply at all times, including weekends and holidays. This means that the rules that accompany this sign do not change based on the day of the week or any specific time frame. For example, if it's a parking restriction sign, it would mean that the parking rules are enforced 24/7, regardless of the day. It's essential for drivers to comply with this sign to avoid fines or penalties. Always be attentive to the details provided within the context of the sign for further clarification on specific rules or restrictions.