I am from India but I stay in Spain. I have a 2-year Standard Visitor visa to UK. I can travel to UK six months in one year. Recently I went to London for the first time. While entering, Immigration checked my passport and stamped it. So my clock ticking started. But when returning back to Spain, no one in the airport checked my passport (except airline employees to issue boarding pass). When I landed in Spain, they saw only my Spanish resident card.
Is my clock still ticking (for UK visa) and the time is being counted?