Tony Finch notes:
DST is beneficial provided it is applied consistently over a reasonably large area. However it is a crude and arbitrary mechanism. It offends those who think time should be a matter of natural philosophy, not of politics. It is a great inconvenience to us technologists when the politicians cannot stop themselves from messing around with the schedule. It causes many problems when the clocks suddenly jump by an hour twice a year.
... There is a way to enjoy the benefits of DST while avoiding these drawbacks. The essential idea is that our clocks should be set using sunrise as a benchmark instead of noon.