Celebrity Big Brother viewers baffled as they spot huge rule break – did you clock it?

CELEBRITY Big Brother fans were left confused this evening as Donna Preston let slip she knew what the time was.

are amongst the items that are strictly prohibited in the famous house, even for the housemates.

Donna told Ella what the time wasElla was emotional during tonight's episodeElla was lying in bed – while the others were outside

But the comedian revealed the time as she went into the bedroom to check was OK.

As the star lay in bed, told her: “It’s ten to nine.”;

Those watching at home took to social media to discuss the moment, with one person commenting: “I thought they weren’t supposed to know the time in the house?”;

Another said: “How did Donna know what the time was?”;

While someone else wrote: “I thought they weren’t supposed to know the time in the house?”;

Earlier in the series, , but was exempt from the rule due to the fact she is living with and is thought to need it to monitor various aspects of her health.

Ella appeared to be struggling in tonight’s episode as she retreated to the bedroom and admitted her social battery was at 3%.

The star admitted her social battery was low