She is in her 20's.

She is in her 20s and already successful in her career.

4/20 is a popular alternative form of 420.

There are many 10-20s in the park.

Today is the 22nd of the month.

The 20th century was a time of great technological advancements.

Non-24 is a circadian rhythm disorder that affects the sleep-wake cycle.

In the 2080s, space travel became a common form of transportation.

I wonder what life will be like in the 2050s.

In the 2070s, humans will have advanced technology that allows them to travel to other galaxies.