Milliseconds, microseconds and nanoseconds are examples of very _____ units of time.
small/short etc.
Planck time is the name given to the _____ known unit of time.
smallest/tiniest etc.
Different parts of the world are located in different time zones. This means that while you are having breakfast in the morning, someone in another part of the world is _____.
having dinner, sleeping, etc.
If you wanted to measure time you could use a watch, clock, hourglass or even a _____ .
sundial, etc.
