Singapore doesn't observe daylight saving time but Cardiff does. DST in Cardiff started on 31 March 2019 and will end on 27 October 2019. Once DST ends in Cardiff the time difference between Cardiff and Singapore will be 8:0 hours.
Time zone: BST - British Summer Time (UTC/GMT +1)DST started on 31 March 2019DST will end on 27 October 2019Time zone difference / Flight distance
Time zone: SGT - Singapore Time (UTC/GMT +8)Time zone difference / Flight distance