This is the RN's view of what the T45's typically do
Daring has had a busy life since commissioning in 2009, circumnavigating the globe from May 2013 to February 2014. She has conducted radar trials in the Pacific Ocean, provided relief the stricken islands of the Philippines following typhoon Haiyan, and put her sophisticated radar and missile systems to excellent use protecting US aircraft carriers as they strike at terrorists in Iraq and Syria.Daring returned to Portsmouth in May 2017. During her time away, she visited 12 countries, steamed 50,000 miles and taken part in 20 patrols of the Bab-al-Mandeb strait to reassure merchant vessels and keep the sea lanes open for trade.
I'm sure WEBF's posts will fill in the any gaps -