This is the 15805th most frequent Russian word.
продлены
"Продлены" means "extended" or "prolonged."
Here, 'продлен' emphasizes the action of extending the duration of something, specifically a contractual term.
Срок действия договора был продлен на один год.
The term of the contract was extended for one year.
In this instance, 'продлены' is used to express the extension of operational hours.
Часы работы музея были продлены в праздничные дни.
The museum's working hours were extended during the holidays.
Here, the verb 'продлены' could refer to the extended status resulting from an administrative action.