What are the disadvantages of clock?

The disadvantages of the clock are:

• You have to reset the time in the spring and winter.
• Sometimes they tick and that can be annoying when trying to sleep.
• Most require batteries which are expensive.
• Sometimes when they are only wrong by a couple minutes that can affect things like being late for meetings and missing the beginning of a programme that you need/want to watch.
• Some are slow or fast.
• You have to take them down to change the time.

Hope these help!