I am not a great fan of daylight saving and here in the UK would prefer to stay on BST the whole year round. When I commuted it made no difference as I left in the dark and came home in the dark.

For a time I worked on telephone networks and call logging. Clock changes were a nightmare as you needed to sync the network (easier these days with central clocking) and catch erroneous data. One example was someone would make a 2 minute call and be logged as having made one for 1h 2m or 23h 2m depending which way the clocks went. It was all sorted in the end but showed things had not been thought through!