Tempus-fugit, a pill which gives your reflexes a jolt. Some have been known to take one or two occassionally to make a weekend feel like a month.
Primarily, though, they just stretch out your subjective time by a factor of ten or more, chop time into finer bits so that you live longer for the same amount of clock and calendar.

A man was known to die of old age within a month for taking them steadily. But who is to say that he did not have the right idea?

He lived a long and happy life. You can be sure that it was happy. And he surely died happy!

What does it matter that there were only 30 sunsets in his life? Who is keeping score and what are the rules exactly anyhow?